Questions on Word Problems: Evaluation, Substitution answered by real tutors!

Algebra -> Algebra -> Customizable Word Problem Solvers -> Questions on Word Problems: Evaluation, Substitution answered by real tutors! (Log On)

Ad: Over 600 Algebra Word Problems at edhelper.com
Ad: Algebra Solved!™: algebra software that solves YOUR algebra homework problems with step-by-step help!

Tutors Answer Your Questions about Evaluation Word Problems (FREE)

Question 155294: Could you show me the steps you take to solve:
The sum of two integers is thirty. Eight times the smaller integer is six more than five times the larger integer. Find the integers. : Could you show me the steps you take to solve:
The sum of two integers is thirty. Eight times the smaller integer is six more than five times the larger integer. Find the integers.
Click here to see answer by nerdybill(465)

Question 155011: the total population of a region in a certain country is 15 500.A village with a population of 620 is situated in this region.Express the population of the village as a percentageof the totalpopulation of this region
: the total population of a region in a certain country is 15 500.A village with a population of 620 is situated in this region.Express the population of the village as a percentageof the totalpopulation of this region

Click here to see answer by oscargut(506)

Question 152913This question is from textbook introductory mathematical analysis , for business ,economics and the life and social science

: Hi iam having some problems with this question, i would appreciate it very much if you could solve it for me, thank you.
Equalizing cost.
United products co. manufactures calculators and has plants in the cities of Exton AND WHYTON .At the Exton plant, fixed cost are $7000 per month , and cost of producing each calculator is $7.50.At the Whyton plant ,fixed cost are $8800 per month ,and each calculator costs $6.00 to produce .Next month ,United products must produce 1500 calculators.How many must be made at each plant if the total cost at each plant is be the same
This question is from textbook introductory mathematical analysis , for business ,economics and the life and social science

: Hi iam having some problems with this question, i would appreciate it very much if you could solve it for me, thank you.
Equalizing cost.
United products co. manufactures calculators and has plants in the cities of Exton AND WHYTON .At the Exton plant, fixed cost are $7000 per month , and cost of producing each calculator is $7.50.At the Whyton plant ,fixed cost are $8800 per month ,and each calculator costs $6.00 to produce .Next month ,United products must produce 1500 calculators.How many must be made at each plant if the total cost at each plant is be the same

Click here to see answer by Earlsdon(3516)

Question 152624: First equation is x + y = 56
Second equation is where I am having the problem with interperting:
The sales representative later indicates that there are 3 times as many homes available with second floor plan than the first. Write an equation that illustrates this situation. Heres what I think the secon equation should look like: x + 3y =0?
When trying to solve with substitution my answers become false.
y= -x + 56 x + 3(-x + 56)= 0
x -3x + 168 = 0
-2x + 168 = 0
-2x = -168
x = 84
y= 84 + 56
y= 140
x + y = 56
84 + 140= 196

: First equation is x + y = 56
Second equation is where I am having the problem with interperting:
The sales representative later indicates that there are 3 times as many homes available with second floor plan than the first. Write an equation that illustrates this situation. Heres what I think the secon equation should look like: x + 3y =0?
When trying to solve with substitution my answers become false.
y= -x + 56 x + 3(-x + 56)= 0
x -3x + 168 = 0
-2x + 168 = 0
-2x = -168
x = 84
y= 84 + 56
y= 140
x + y = 56
84 + 140= 196

Click here to see answer by Fombitz(1275)

Question 152453: ``anne buys a plant whose height is 8cm. the plant is growing at a rate of 4/5 cm per week. when will its height exceed 13 3/5 cm.''. This problem needs to have < and > in it. someone please help me.: ``anne buys a plant whose height is 8cm. the plant is growing at a rate of 4/5 cm per week. when will its height exceed 13 3/5 cm.''. This problem needs to have < and > in it. someone please help me.
Click here to see answer by vleith(967)

Question 152191: A can paint a certain house in 10 days and B can paint the same house in 12 days. How long will it take to paint the house if both men work?: A can paint a certain house in 10 days and B can paint the same house in 12 days. How long will it take to paint the house if both men work?
Click here to see answer by Alan3354(566)

Question 152192: A,B and C can do a piece of work together in 3 days. A can do it alone in 10 days and B can do it alone in 8 days. How long will it take C to do the job alone?: A,B and C can do a piece of work together in 3 days. A can do it alone in 10 days and B can do it alone in 8 days. How long will it take C to do the job alone?
Click here to see answer by edjones(2169)

Question 151722: Sally paints a house in 4 hours, John can paint the same house in 6 hours, how long will it take for Sally and John to paint the house together?: Sally paints a house in 4 hours, John can paint the same house in 6 hours, how long will it take for Sally and John to paint the house together?
Click here to see answer by checkley77(1743)

Question 151680: anne buys a plant whose height is 8cm. the plant is growing at a rate of 4/5 cm per week. when will its height exceed 13 3/5 cm.: anne buys a plant whose height is 8cm. the plant is growing at a rate of 4/5 cm per week. when will its height exceed 13 3/5 cm.
Click here to see answer by jojo14344(371)

Question 151501: For about what value(s) of x does g(x)=k(x) if g(x)=2x^2 -8 and k(x) =-x^2 -2?
x~ +or-2
x~ +or-2.3
x~ 1.4
x~ +or- 1.4
: For about what value(s) of x does g(x)=k(x) if g(x)=2x^2 -8 and k(x) =-x^2 -2?
x~ +or-2
x~ +or-2.3
x~ 1.4
x~ +or- 1.4

Click here to see answer by jim_thompson5910(8302)

Question 151377: A merchant sold his entire stock of shirts and ties for $1000, the shirts being priced at 3 for $10 and the ties at $2 each. If he had sold only 1/2 of the shirts and 2/3 of the ties he would have collected $600. How many of each kind did he sell?: A merchant sold his entire stock of shirts and ties for $1000, the shirts being priced at 3 for $10 and the ties at $2 each. If he had sold only 1/2 of the shirts and 2/3 of the ties he would have collected $600. How many of each kind did he sell?
Click here to see answer by stanbon(18044)

Question 151375: Five tables and eight chairs cost $115; three tables and five chairs cost $70. Determine the cost of each table and each chair.: Five tables and eight chairs cost $115; three tables and five chairs cost $70. Determine the cost of each table and each chair.
Click here to see answer by oscargut(506)

Question 150594: There are 44 students in a canteen. If there are 28 more girls than boys, how many boys and how many girls are in the canteen?: There are 44 students in a canteen. If there are 28 more girls than boys, how many boys and how many girls are in the canteen?
Click here to see answer by nerdybill(465)

Question 149664: Solve for x
-8x+14=-2(4x-7): Solve for x
-8x+14=-2(4x-7)
Click here to see answer by jim_thompson5910(8302)

Question 149008: 1. The ratio of two numbers in 6:1.If their difference is 35, what is the smaller number?
2. The ratio of the width to the length of a rectangle is 2:3. If the area of the rectanglle is 216 sq. cm. , what is its width?
: 1. The ratio of two numbers in 6:1.If their difference is 35, what is the smaller number?
2. The ratio of the width to the length of a rectangle is 2:3. If the area of the rectanglle is 216 sq. cm. , what is its width?

Click here to see answer by ankor@dixie-net.com(3949)

Question 148628This question is from textbook
: The present value P that will amount to A dollars in N years with interests compounded annually at an interest rate R is given by
Find the present value that will amount to 50,000 in 20 years at 8% compounded annually
This question is from textbook
: The present value P that will amount to A dollars in N years with interests compounded annually at an interest rate R is given by
Find the present value that will amount to 50,000 in 20 years at 8% compounded annually

Click here to see answer by checkley77(1743)

Question 148626This question is from textbook
: A car is traveling on a road that is perpendicular to a railroad track. When the car is 30 meters from the crossing, the car’s new collision detector warns the driver that there is a train 50 meters from the car and heading for the same crossing. How far is the train from the crossing?
This question is from textbook
: A car is traveling on a road that is perpendicular to a railroad track. When the car is 30 meters from the crossing, the car’s new collision detector warns the driver that there is a train 50 meters from the car and heading for the same crossing. How far is the train from the crossing?

Click here to see answer by tennisbuff07(19)

Question 148366: a disc jockey must play 14 commercial spots during 1 hour of a radio show. Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1 hour is 11 minutes how many 30 second commercials were played that hour? How many 60 second commercials?: a disc jockey must play 14 commercial spots during 1 hour of a radio show. Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1 hour is 11 minutes how many 30 second commercials were played that hour? How many 60 second commercials?
Click here to see answer by mangopeeler07(429)

Question 148338: Jack gave 1/2 of her apple to Jill, Jill gave 1/3 of the apple he received to Pete and Pete gave 1/4 of what he received to Mike, if Mike received 24 apples, how many did Jack heve originally?: Jack gave 1/2 of her apple to Jill, Jill gave 1/3 of the apple he received to Pete and Pete gave 1/4 of what he received to Mike, if Mike received 24 apples, how many did Jack heve originally?
Click here to see answer by ankor@dixie-net.com(3949)

Question 147818: soybean meal is 14% protein; cornmeal is 7% protein.how many pounds of each should be mixed together in order to get 280lb mixture that is 12% protein?
how many pounds of cornmeal should be in the mixture?
how many pounds of soybean meal should be in the mixture?: soybean meal is 14% protein; cornmeal is 7% protein.how many pounds of each should be mixed together in order to get 280lb mixture that is 12% protein?
how many pounds of cornmeal should be in the mixture?
how many pounds of soybean meal should be in the mixture?
Click here to see answer by ankor@dixie-net.com(3949)

Question 147568: Tom and David have 480 marbles between them. Tom arranges them in columns with 6 in each column, and David arranges them with 9 in each column. The total number of columns is 72. Express the above information in the form of an algebraic equation.

I cannot figure how to express the information in the form of an equation. From the directions, it seems that all the information should be included in one equation, but I am at a loss. I did come up with the info below, but I am unsure if this is what is being asked. Any help would be appreciated.
t + d = 72 columns
6t + 9d = 480 marbles
: Tom and David have 480 marbles between them. Tom arranges them in columns with 6 in each column, and David arranges them with 9 in each column. The total number of columns is 72. Express the above information in the form of an algebraic equation.

I cannot figure how to express the information in the form of an equation. From the directions, it seems that all the information should be included in one equation, but I am at a loss. I did come up with the info below, but I am unsure if this is what is being asked. Any help would be appreciated.
t + d = 72 columns
6t + 9d = 480 marbles

Click here to see answer by stanbon(18044)

Question 147059: S(t) = -16t^2 + 150t + 5: S(t) = -16t^2 + 150t + 5
Click here to see answer by checkley77(1743)

Question 146803: Solve:
One number is 11 less than a second number. Twice the second number is 52 more than 4 times the first. Find the two numbers.: Solve:
One number is 11 less than a second number. Twice the second number is 52 more than 4 times the first. Find the two numbers.
Click here to see answer by 24HoursTutor.com(40)

Question 145651: Help with 2 word problems
Solve the following applications problems using any method
A couple working towards retirement made two investments totaling $15,000. In one year, these investments yielded $1432 in simple interest. Part of the money was invested at 9% and the rest at 10% How much was invested at each rate?

A car travels 300 miles in the same amount of time that a car traveling 5 miles and hour slower travels 275 miles. At what speed (rate) is each car traveling?

With both of these I can get so far and I get stuck Thanks : Help with 2 word problems
Solve the following applications problems using any method
A couple working towards retirement made two investments totaling $15,000. In one year, these investments yielded $1432 in simple interest. Part of the money was invested at 9% and the rest at 10% How much was invested at each rate?

A car travels 300 miles in the same amount of time that a car traveling 5 miles and hour slower travels 275 miles. At what speed (rate) is each car traveling?

With both of these I can get so far and I get stuck Thanks
Click here to see answer by Earlsdon(3516)

Question 145112: Foul Ball. Suppose Charlie O'Brian hits a baseball straight upward at 150 ft/sec from a height of 5 ft.
Use the formula S=-16t^2 + v0t + s0
For reference: If an object is given an initial velocity of v0 feet per second from a height of s0 feet, then its height S after t seconds is given by the formula : S=-16t^2 + v0t + s0
: Foul Ball. Suppose Charlie O'Brian hits a baseball straight upward at 150 ft/sec from a height of 5 ft.
Use the formula S=-16t^2 + v0t + s0
For reference: If an object is given an initial velocity of v0 feet per second from a height of s0 feet, then its height S after t seconds is given by the formula : S=-16t^2 + v0t + s0

Click here to see answer by stanbon(18044)

Question 144950: 1. In a survey, 1,000 kids were asked if they owned a pair of tennis shoes and if they owned Nike shoes. The results showed that 7 in 10 kids owned a pair of tennis shoes, and 1 in 5 kids owned Nike shoes. Of the kids surveyed that owned Nike shoes, 1 in 4 kids owned tennis shoes.

A. Find the probability that a randomly selected kid owns tennis shoes given that he or she owns Nike shoes.
B. Find the probability that a randomly selected kid owns Nike shoes and owns tennis shoes.
C. Are these two events (owning tennis shoes and owning Nike shoes) dependent or independent? Why or why not?

2. A corporation has a workforce of 3,000. 1,200 work in the finance department and 1,400 are men. Of the 1,200 that work in the finance department, 600 are men.

A. Let’s assume that the company conducts a poll to see how many employees are happy with their jobs. Employees are randomly selected. Find the probability that the selected employee is a man or an employee working in the finance department.

3. Suppose the NCAA finally decides to develop a playoff system for college football. Let’s assume that they want the top 8 teams to play and only 2 teams play on the field at the same time (naturally). How many different combinations of matches are possible between these 8 teams?

4. Through extensive research, it is known that 70% of men prefer to shop at Wal-Mart versus Target. You randomly select 5 men and ask them if they prefer to shop at Wal-Mart or Target.

A. Find the probability that exactly 3 of them prefer to shop at Wal-Mart.
B. Find the probability that fewer than 3 of them prefer to shop at Wal-Mart.
C. Find the probability that at least 3 of them prefer to shop at Wal-Mart.

5. The weight of adult male Chihuahuas is normally distributed, with a mean of 7 pounds and a standard deviation of 1.2 pounds. An adult male Chihuahua is randomly selected.

A. Find the probability that the Chihuahua ’s weight is less than 5 pounds.
B. Find the probability that the Chihuahua ’s weight is more than 8 pounds.
C. Find the probability that the Chihuahua ’s weight is between 5 and 8 pounds.

6. Scores on the GMAT (Graduate Management Admissions Test) are normally distributed, with a mean of 620 and a standard deviation of 120. Scores can be as high as 800. To be accepted into The Ohio State University’s Executive MBA program, it is recommended that applicants score in the top 10%. What is the lowest score that you can earn and still be considered for acceptance into the program?

7. A quality control technician at The Coca-Cola Company wishes to estimate the mean number of ounces that are in the 20 ounce bottle of Diet Coke. In a random sample of 50 bottles, the mean number of ounces is found to be 20.1 ounces with a standard deviation of 0.75 ounces. Assume a normal distribution. Construct a 95% confidence interval for all 20 ounce bottles of Diet Coke. What does this mean?

8. A quality control technician at The Coca-Cola Company wishes to estimate the mean number of ounces that are in the 20 ounce bottle of Diet Coke. In a random sample of 20 bottles, the mean number of ounces is found to be 20.1 ounces with a standard deviation of 0.75 ounces. Assume a normal distribution. Construct a 95% confidence interval for all 20 ounce bottles of Diet Coke. What does this mean?

9. In a survey of 1,000 people, 540 people said they prefer Pepsi over Coca-Cola. Construct a 99% confidence interval for the proportion of people who prefer Pepsi. What does this mean?: 1. In a survey, 1,000 kids were asked if they owned a pair of tennis shoes and if they owned Nike shoes. The results showed that 7 in 10 kids owned a pair of tennis shoes, and 1 in 5 kids owned Nike shoes. Of the kids surveyed that owned Nike shoes, 1 in 4 kids owned tennis shoes.

A. Find the probability that a randomly selected kid owns tennis shoes given that he or she owns Nike shoes.
B. Find the probability that a randomly selected kid owns Nike shoes and owns tennis shoes.
C. Are these two events (owning tennis shoes and owning Nike shoes) dependent or independent? Why or why not?

2. A corporation has a workforce of 3,000. 1,200 work in the finance department and 1,400 are men. Of the 1,200 that work in the finance department, 600 are men.

A. Let’s assume that the company conducts a poll to see how many employees are happy with their jobs. Employees are randomly selected. Find the probability that the selected employee is a man or an employee working in the finance department.

3. Suppose the NCAA finally decides to develop a playoff system for college football. Let’s assume that they want the top 8 teams to play and only 2 teams play on the field at the same time (naturally). How many different combinations of matches are possible between these 8 teams?

4. Through extensive research, it is known that 70% of men prefer to shop at Wal-Mart versus Target. You randomly select 5 men and ask them if they prefer to shop at Wal-Mart or Target.

A. Find the probability that exactly 3 of them prefer to shop at Wal-Mart.
B. Find the probability that fewer than 3 of them prefer to shop at Wal-Mart.
C. Find the probability that at least 3 of them prefer to shop at Wal-Mart.

5. The weight of adult male Chihuahuas is normally distributed, with a mean of 7 pounds and a standard deviation of 1.2 pounds. An adult male Chihuahua is randomly selected.

A. Find the probability that the Chihuahua ’s weight is less than 5 pounds.
B. Find the probability that the Chihuahua ’s weight is more than 8 pounds.
C. Find the probability that the Chihuahua ’s weight is between 5 and 8 pounds.

6. Scores on the GMAT (Graduate Management Admissions Test) are normally distributed, with a mean of 620 and a standard deviation of 120. Scores can be as high as 800. To be accepted into The Ohio State University’s Executive MBA program, it is recommended that applicants score in the top 10%. What is the lowest score that you can earn and still be considered for acceptance into the program?

7. A quality control technician at The Coca-Cola Company wishes to estimate the mean number of ounces that are in the 20 ounce bottle of Diet Coke. In a random sample of 50 bottles, the mean number of ounces is found to be 20.1 ounces with a standard deviation of 0.75 ounces. Assume a normal distribution. Construct a 95% confidence interval for all 20 ounce bottles of Diet Coke. What does this mean?

8. A quality control technician at The Coca-Cola Company wishes to estimate the mean number of ounces that are in the 20 ounce bottle of Diet Coke. In a random sample of 20 bottles, the mean number of ounces is found to be 20.1 ounces with a standard deviation of 0.75 ounces. Assume a normal distribution. Construct a 95% confidence interval for all 20 ounce bottles of Diet Coke. What does this mean?

9. In a survey of 1,000 people, 540 people said they prefer Pepsi over Coca-Cola. Construct a 99% confidence interval for the proportion of people who prefer Pepsi. What does this mean?
Click here to see answer by solver91311(1828)

Question 144125: A baseball team has 9 players, all of whom have equal skill in all positions. The team needs 3 outfielders. Assuming order is important, find the number of ways of forming an outfield with 3 outfielders?: A baseball team has 9 players, all of whom have equal skill in all positions. The team needs 3 outfielders. Assuming order is important, find the number of ways of forming an outfield with 3 outfielders?
Click here to see answer by stanbon(18044)

Question 144090: 3. A baseball team has 9 players, all of whom have equal skill in all positions. The team needs 3 outfielders. Assuming order is not important, how many possible combinations of outfielders are there? Put your formula/answer in cell A3.

4. The results of a recent survey indicate that 68% of households in the United States have internet access. If you randomly select 5 households, what is the probability that exactly 3 households will have internet access? Put your answer in cell A4. What is the probability that fewer than 3 households have internet access? Put your answer in cell A5. What is the probability at least three of them have internet access? Put your answer in cell A6. (False returns “exactly” amount”, whereas “true” returns the cumulative amount.)

5. Find the area under the standard normal curve to the left of z = -1.01. Put your answer in cell A7. : 3. A baseball team has 9 players, all of whom have equal skill in all positions. The team needs 3 outfielders. Assuming order is not important, how many possible combinations of outfielders are there? Put your formula/answer in cell A3.

4. The results of a recent survey indicate that 68% of households in the United States have internet access. If you randomly select 5 households, what is the probability that exactly 3 households will have internet access? Put your answer in cell A4. What is the probability that fewer than 3 households have internet access? Put your answer in cell A5. What is the probability at least three of them have internet access? Put your answer in cell A6. (False returns “exactly” amount”, whereas “true” returns the cumulative amount.)

5. Find the area under the standard normal curve to the left of z = -1.01. Put your answer in cell A7.
Click here to see answer by stanbon(18044)

Question 142745: A truck is loaded with sugar cane and driven to a sugar mill 50 km away. The truck is then off-loaded and returns empty. The speed of the loaded truck is five times slower than that of the empty truck. If the driving time to the mill and back is 2 hours and 30 minutes, calculate the speed of the loaded truck.: A truck is loaded with sugar cane and driven to a sugar mill 50 km away. The truck is then off-loaded and returns empty. The speed of the loaded truck is five times slower than that of the empty truck. If the driving time to the mill and back is 2 hours and 30 minutes, calculate the speed of the loaded truck.
Click here to see answer by checkley77(1743)

Question 142694: 3.40 for 3 doughnuts and 2 coffees, then 3.60 for 2 doughnuts and 3 coffees. What is the bill for 1 doughnut and 1 coffee?: 3.40 for 3 doughnuts and 2 coffees, then 3.60 for 2 doughnuts and 3 coffees. What is the bill for 1 doughnut and 1 coffee?
Click here to see answer by stanbon(18044)

Question 141596: Which process would you use to solve both of the following systems of equations, the addition method or the substitution method? Are they both applicable to use, or would one method be easier to use than the other? Please EXPLAIN your responses.
System 1:
x + y = 7
x - y = 9
System 2:
3x - 4y = 11
-2x + 3y = -7: Which process would you use to solve both of the following systems of equations, the addition method or the substitution method? Are they both applicable to use, or would one method be easier to use than the other? Please EXPLAIN your responses.
System 1:
x + y = 7
x - y = 9
System 2:
3x - 4y = 11
-2x + 3y = -7
Click here to see answer by Fombitz(1275)

Question 138327: the letter a represents angela's age now. Write an expression for her age in ten years?: the letter a represents angela's age now. Write an expression for her age in ten years?
Click here to see answer by checkley77(1743)

Question 137224: Wanda weighed her 4 pet pigs in pairs. Together, Oinker and Squeaker weighed 110 pounds, Squeaker and Curly weighed 103 pounds, and Curly and Porker totalled 108 pounds. How many pounds would Oinker and Porker weigh together? : Wanda weighed her 4 pet pigs in pairs. Together, Oinker and Squeaker weighed 110 pounds, Squeaker and Curly weighed 103 pounds, and Curly and Porker totalled 108 pounds. How many pounds would Oinker and Porker weigh together?
Click here to see answer by ankor@dixie-net.com(3949)

Question 137362: There are two questions I need help with. Hope you can help, and thank you!!
1.The purity of gold is measured in karats, with pure gold being 24 karats. Other purities of gold are expressed as proportional parst of pure gold. Thus, 18 karat gold is 18/24, or 75% pure gold, 12 karat gold is 12/24, or 50%; and so on. How much 12 karat gold should be mixed with pure gold to obtain 60 grams of 16 karat gold?
2. An air rescue plane averages 300 miles per hour in still air. It carries fuel for 5 hours of flying time. If, upon takeoff, it encouters a wind of 30 miles per hour, how far can it fly and return safely? (assume that the wind remains constant): There are two questions I need help with. Hope you can help, and thank you!!
1.The purity of gold is measured in karats, with pure gold being 24 karats. Other purities of gold are expressed as proportional parst of pure gold. Thus, 18 karat gold is 18/24, or 75% pure gold, 12 karat gold is 12/24, or 50%; and so on. How much 12 karat gold should be mixed with pure gold to obtain 60 grams of 16 karat gold?
2. An air rescue plane averages 300 miles per hour in still air. It carries fuel for 5 hours of flying time. If, upon takeoff, it encouters a wind of 30 miles per hour, how far can it fly and return safely? (assume that the wind remains constant)
Click here to see answer by stanbon(18044)

Question 137328This question is from textbook Introductory Algebra
: Basketball Scoring: In a recent game of the 2004-2005 basketball season, the San Antonio Spurs scored 85 of their points on a combination of 39 two-and-three-point baskets. How many of each type of shot were made?
I am trying to get the logic of this problem....I know how to get the answers but I am having problems to set up the problem in two equations. If someone can explain how to read the problem, I would appreciate it very much. Thank youThis question is from textbook Introductory Algebra
: Basketball Scoring: In a recent game of the 2004-2005 basketball season, the San Antonio Spurs scored 85 of their points on a combination of 39 two-and-three-point baskets. How many of each type of shot were made?
I am trying to get the logic of this problem....I know how to get the answers but I am having problems to set up the problem in two equations. If someone can explain how to read the problem, I would appreciate it very much. Thank you
Click here to see answer by stanbon(18044)

Question 133951: A,B and C can finish a job in 6 days. If B and C work together,the job will take 9 days, if A anc C work alone the job will take 8 days. In how many days each man working alone do the job? Thank you.
This is what I have so far
1/x + 1/y + 1/z = 1/6
1/y + 1/z = 1/9
1/x + 1/z = 1/8
This is where I got lost
Help please thank you: A,B and C can finish a job in 6 days. If B and C work together,the job will take 9 days, if A anc C work alone the job will take 8 days. In how many days each man working alone do the job? Thank you.
This is what I have so far
1/x + 1/y + 1/z = 1/6
1/y + 1/z = 1/9
1/x + 1/z = 1/8
This is where I got lost
Help please thank you
Click here to see answer by scott8148(2485)

Question 133271: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 miles per hour and Train B is traveling at 40 miles per hour. Train A passes a station at 7:10PM. If Train B passes the same station at 7:22PM, at what time will Train B catch up to Train B?
__:__ AM or PM: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 miles per hour and Train B is traveling at 40 miles per hour. Train A passes a station at 7:10PM. If Train B passes the same station at 7:22PM, at what time will Train B catch up to Train B?
__:__ AM or PM
Click here to see answer by vnbox(1)

Question 133268: The length of a rectangle is fixed at 10cm. What widths will make the perimeter greater than 88cm?
The width must be greater than _______ cm.: The length of a rectangle is fixed at 10cm. What widths will make the perimeter greater than 88cm?
The width must be greater than _______ cm.
Click here to see answer by oscargut(506)

Question 132967: The church youth group is planning a trip to Washington. A total of 127 people need rides. The church has available buses that hold 40 passengers, and several parents have volunteered station wagons that hold 8 passengers or sedans that hold 5 passengers. The youth leader is planning to use nine vehicles to transport the people. One parent said that if they didn't use any buses, tripled the number of station wagons, and doubled the number of sedans, they would be able to transport 126 people. How many buses, station wagons and sedans are they planning to use if they use 9 vehicles?
Where:
B = Bus
W = Wagon
S = Sedan
Indicate the algebraic equations used to solve this problem and then solve for the unknowns.: The church youth group is planning a trip to Washington. A total of 127 people need rides. The church has available buses that hold 40 passengers, and several parents have volunteered station wagons that hold 8 passengers or sedans that hold 5 passengers. The youth leader is planning to use nine vehicles to transport the people. One parent said that if they didn't use any buses, tripled the number of station wagons, and doubled the number of sedans, they would be able to transport 126 people. How many buses, station wagons and sedans are they planning to use if they use 9 vehicles?
Where:
B = Bus
W = Wagon
S = Sedan
Indicate the algebraic equations used to solve this problem and then solve for the unknowns.
Click here to see answer by stanbon(18044)

Question 132522: Fifteen (15) years ago Jennifer was quarter of the age she would be fifteen (15) years form now. How old is Jennifer?: Fifteen (15) years ago Jennifer was quarter of the age she would be fifteen (15) years form now. How old is Jennifer?
Click here to see answer by stanbon(18044)

Question 130894: Find the length of each side of a triangle if the perimeter is 73. The length of the second side is twice the length of the first side and the length of the third side is five more than the length of the first side. I have no idea!! : Find the length of each side of a triangle if the perimeter is 73. The length of the second side is twice the length of the first side and the length of the third side is five more than the length of the first side. I have no idea!!
Click here to see answer by dddiwakar_2004(2)

Question 130652: You have Two pieces of ropes of equal lenths. The first piece is 3 times the length of a piece of wood minus 2 inches the second piece is 3 times the lengh of the same piece of wood plus 15 inches. solve equation and graph. I understand 3x-2 and 3x+15 x is the variable for the wood. But I'm not sure how to put it in the correct equation. Would it just be 3x-2=3x+15. Once I get the equation I can solve it but I am not sure how to graph it.
Thank you for your help.: You have Two pieces of ropes of equal lenths. The first piece is 3 times the length of a piece of wood minus 2 inches the second piece is 3 times the lengh of the same piece of wood plus 15 inches. solve equation and graph. I understand 3x-2 and 3x+15 x is the variable for the wood. But I'm not sure how to put it in the correct equation. Would it just be 3x-2=3x+15. Once I get the equation I can solve it but I am not sure how to graph it.
Thank you for your help.
Click here to see answer by ptaylor(1184)