Questions on Word Problems: Problems on percentages, ratios, and fractions answered by real tutors!

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Question 191039: The formula h=-16t^2+vt gives the height h in feet of an object after t second, when it is shot upward into the air with an initial velocity v in feet per second. After how many seconds will the object hit the ground if it is shot with a velocity of 144 feet per second?
Click here to see answer by nerdybill(6963)

Question 191035: A 45- foot long speaker wire is to be cut into three pieces. One piece is to be 15 feet long. Of the remaining piece, one must be 2 feet less than 3 times the length of the other. Find the leght of each piece.
Click here to see answer by nerdybill(6963)

Question 191032: your math instructor tells you that next weeks test is worth 100 points and contains 29 problems. Each problem is worth either 5 points or 2 points. Because you are studying systems of linear equations, your teacher says that for extra credit, you should be able to figure out how much problems of each value are on the test. How many 5 point questions are there? How many 2 point questions are there?
Click here to see answer by jojo14344(1512)

Question 191434: The ratio of foxes to rabbits in the Deerfield Forest Preserve is 2 to 9. If there are 35 fewer foxes than rabbits, then how many of each are there?
I know this isn't right: 2:9=-35:x
Click here to see answer by stanbon(57424)

Question 191841: this year, 75 percent of the graduating class of harriet high school had taken at least 8 math courses. of the remaining class members, 60 percent had taken 6 or 7 courses. what percent of the graduating class has taken fewer than 6 math courses?

this question is from the ace practice test online by going to deltacollege.edu then clicking on assessment test then ace sample questions
Click here to see answer by ankor@dixie-net.com(15667)

Question 191866: If jan can paint a house in 4 hours and jim can paint a house in 6 hours, how long will it take for them to paint the house together.
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Question 192025: 7000 is 17% of what number?
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Question 191951: The ratio of cars to SUVs is 4 to 5. After 6 cars leave the parking lot, the ratio of cars to SUVs becomes 1 to 2. How many SUVs are in the parking lot?
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Question 192026: 7000 is 17% of what number?
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Question 192099: A 55-gallon barrel contains a mixture with a concentration of 30%. How much of this mixture must be withdrawn and replaced by 100% concentrate to bring the mixture up to 50% concentrate?
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Question 192107: Suppose a population of initial size 100 grows at the rate of 8% per year forever.
What is the size of the population at the end of year 1?
What is the size of the population at the end of year 2?
What is the size of the population at the end of year 3?
What is the size of the population at the end of year n (for any integer n)?
What algebraic equation would you need to solve to find the number of years x that it would take for our population to reach 200?
Click here to see answer by RAY100(1637)

Question 192178: A lawyer bills her clients $300 per hour of service. If a client's case requires 17 hours to complete, use a proportion to calculate how much the client will owe the lawyer (excluding tax).
Click here to see answer by Mathtut(3670)

Question 192294: A pharmacist mixed some 10% saline solution with some 15% saline solution to obtain 100mL of a 12% saline solution. How much of the 10% saline solution did th pharmacist use in the mixture?
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Question 192304: Members of a senior class held a car wash to raise funds for thier senior prom. They charged $3 to wash a car and $5 to wash a truck. If they earned a total of $275 by washing a total of 75 vehicles,how many cars did they wash?
Click here to see answer by solver91311(16897)

Question 192303: Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?
Click here to see answer by Mathtut(3670)

Question 192388: I need the answer to this question.Please!! COOKING/ Q. A recipe for cookies calls for 2 2/3 cups of flour. You have only a 1/3 cup scoop for measuring. How many times must you fill the scoop to make the cookies? ISBN=0-13-133990-7 Chapter= 4-6 Mixed numbers and Improper fractions/ page question is on is #184 question 14.
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Question 192398: A stock decreases in value by 20 percent. By what percent must the stock price increase to its former value?
Click here to see answer by edjones(7569)

Question 192398: A stock decreases in value by 20 percent. By what percent must the stock price increase to its former value?
Click here to see answer by checkley77(12569)

Question 192507: a book has 40 pages. 10 pages were read in an hour. write in a fraction how much of the book was read.
Click here to see answer by stanbon(57424)

Question 192549: "A student missed 9 problems on a chemistry test and received a grade of 44%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer."
Click here to see answer by nerdybill(6963)

Question 192900: Debra took a test that consisted of 150 questions and she got 78% correct. How many questions did Debra miss on the test?
Click here to see answer by jojo14344(1512)

Question 193167: a winery wishes to make 10,000 litres of cherry wine by fortifying white wine which has an alcohol content of 10% and with brandy which has an alcohol content of 35% by volume.the cherry is to have an alcohol content of 15%. determine the quantities of white and brandy wine which should be mixed together to produce the desire results.
Click here to see answer by ankor@dixie-net.com(15667)

Question 193142: Can you please help me with this linear equation?
An administrator of a popular website is told that a new faster server, can handle 45,000 "hit" (users accessing the site)per second. The web site currently experience a peak demand of about 110,000 hits per second. But, every month, the peak demand increases by 2500 hits per second. Use proportion equation to determine how many new servers the administrator should buy to address expected traffic for the next 24 months.
Click here to see answer by RAY100(1637)

Question 193689: Can someone help please?
The product of 21% and some number.
I'm at a loss. Thank-you
Click here to see answer by Mathtut(3670)

Question 193732: Can someone help me please? I'd be grateful, thanks.
Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get a 240 pound mixture that is 11% protein. How many pounds of cornmeal and how many pounds of soybean meal?
Click here to see answer by Earlsdon(6291)

Question 193712: Respected sir,
[1] A man reduced the price of his goods by 10% ; his sales increased by 25% to $ 180000 per annum.What were they before?
[2] A man's working hours a day were increased by 20% & his wages per hour were increased by 15%.by how much percentage were his daily earnings increased?
waiting for yurs reply sir.

Click here to see answer by stanbon(57424)

Question 193794: It takes 7/8 of an inch of wire to make a small paper clip. How many small paper clips can be made from a piece of wire that is 14 inches long?
Click here to see answer by Mathtut(3670)

Question 193808: Lisa will make punch that 35% fruit juice adding juice 4 liter mixture that 20% pure juice. How many liters pure juice does she need add?
Click here to see answer by stanbon(57424)

Question 193845: a number n is multiplied by 5/8. The product is subtracted from 2/3. The result is 7/12. What is n?
Click here to see answer by Alan3354(30993)

Question 193845: a number n is multiplied by 5/8. The product is subtracted from 2/3. The result is 7/12. What is n?
Click here to see answer by Mathtut(3670)

Question 193859: A location employs 200 people. If 170 of these are hourly employees and the rest are salaried employees, what percentage of the employees are hourly?
Click here to see answer by edjones(7569)

Question 193877: Respected sir,

3] Of the following, which is the best approximation to & root 0.0026 ?

[4] A certain culture of bacteria quadruples every hour. If a container with these bacteria was half full at 10:00 a.m., at what time was it one-eighth full?
plz help me.
thank u.
Click here to see answer by stanbon(57424)

Question 193985: If a is any number, then =(blank)
Click here to see answer by Mathtut(3670)

Question 193972: A school with 125 teachers and 4,650 students wants to maintain a student to teacher ratio of 30:1. How many teachers do they need to hire to meet that ratio?
Click here to see answer by Mathtut(3670)

Question 194703: One sixth of all sales at Johns Bike Shop are for cash. If cash sales for the week were $265.00. What were Johns total sales?

Click here to see answer by checkley77(12569)

Question 195049: Respected sir,
[1] The percent profit made when an article is sold for Rs.78 is twice as when it is sold for Rs. 69.The cost price of the article is ?
plz solve my problem...
Click here to see answer by stanbon(57424)

Question 195051: Respected sir,
[1] By selling 12 oranges for a rupee,a man loses 20%.How many for a rupee should he sell to gain 20% ?
plz sir help me to solve this problem.
Click here to see answer by RAY100(1637)

Question 195050: Respected sir,
[1] A sweet seller declares that he sells sweets at the cost price . However ,he uses a weight of 450 gms instead of 500 gms.His percentage profit is ?
plz help me sir to solve this math problem.
regards.
BINITA
Click here to see answer by RAY100(1637)

Question 195085: helloo sir,
1] A merchant sold his goods for Rs.75 at a profit per cent equal to its cost price .The cost price was ?
waiting for yurs reply.
thank u.
Click here to see answer by stanbon(57424)

Question 195048: Respected sir,
[1] A man loses Rs.20 by selling some toys at the rate of Rs.3 per piece and gains Rs.30,if he sells them at Rs. 3.25 per piece.The number of pieces sold by him are ?
waiting for yurs reply sir..plz solve my difficulty.
Regards
Binita
Click here to see answer by RAY100(1637)

Question 195209: Hello! Can you please help me solve this word problem?
If the sum of two numbers is 18 and their product is 40, find the following with out finding the two numbers
a) the sum of the reciprocals of the two numbers
b) the sum of the squares of the two numbers (what is (x+y) squared)
This is what I have so far:
x+y = 18
xy=40
18={1,2,3,6,9,18}
40={1,2,4,5,8,10,40}
1/x +1/y =?
1/(x+y) squared
Now I am stuck! Thank you for your help.
Click here to see answer by stanbon(57424)

Question 195234: hi sir,
1] profit after selling an article for Rs.425 is the same as loss after selling it for Rs.355. the cost of the article is ?
2] A radio is sold at a gain of 16%.If it had been sold for Rs.20 more ,20% would have been gained.The cost price of the radio is ?
waiting for yur reply.
thank u.
Click here to see answer by anantha(86)

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