Questions on Word Problems: Linear Equations And Systems Word Problems answered by real tutors!

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Question 480060: Find the slope, if it exist, of the line containing the points (-1,1/2) and (-2,1/2).
Click here to see answer by Alan3354(31532)

Question 480063: find the slope, if it exist 3x-y=8
Click here to see answer by mananth(12270)

Question 480799: a man had a bag of sweets he gave one to his son and 1/7 of the remaining and what he was left he gave to his daughter two sweet and 1/7 of the remaining sweets.the two children found that they have same number of sweets how many sweets are there in original bag
Click here to see answer by mathstutor494(95)

Question 481026: If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times?
Click here to see answer by Alan3354(31532)

Question 481557: May i please Know the steps to solve a question such as:-
The ages of a mother and daughter are 31 and 7 years respectively. In how many years will the mother's age be 3/2 times that of daughter
Click here to see answer by ankor@dixie-net.com(15746)

Question 481593: A chemist is mixing a 40% salt solution with a 20% salt solution to make 50 L of a new solution that will contain 25% salt. How much of each of the original solutions should the chemist use?
I know the answer from a answer key but can you show me how its doen.
Click here to see answer by nerdybill(7008)

Question 481922: Jack brought his wife and 4 kids to a local town picnic.
The tickets cost 14 dollars.
Bill brought his wife and 6 kids and his tickets cost 23 dollars.
How much do the adult tickets cost? How much do the kid tickets cost?
I would have guessed that kids tickets would have been $4.50 a piece since there was a 9 dollar difference between the two families. But 4.50 was not one of the answers.

Click here to see answer by ewatrrr(10682)

Question 481920: Jack brought his wife and 4 kids to a local town picnic.
The tickets cost 14 dollars.
Bill brought his wife and 6 kids and his tickets cost 23 dollars.
How much do the adult tickets cost? How much do the kid tickets cost?
I would have guessed that kids tickets would have been $4.50 a piece since there was a 9 dollar difference between the two families. But 4.50 was not one of the answers.
Click here to see answer by josmiceli(9817)

Question 482019: A person invested $10,000. The greater part is invested at 6% and the remainder at 5%. The annual income from the greater part is $160 more than the annual income from the smaller part. What is the smaller part of the investment?
Click here to see answer by jorel1380(2518)

Question 482519: Train A and B are traveling in the same direction on parallel tracks.
Train A is traveling at 100 miles per hour and train B is traveling at 104 miles per hour. Train A passes a station at 3:10 pm If train B passes the same station at 3:40 pm at what time will train B catch up to train A?
Click here to see answer by mananth(12270)

Question 482712: I dont get this logic stuff.
Write a negation of the statement.
Some athletes are musicians.
would the answer be? some athletes are not musicians.

Click here to see answer by tinbar(128)

Question 483039: What is the algebraic equation for $10.00 $0.00
$9.00 $1.00
$7.50 $2.50
Click here to see answer by Alan3354(31532)

Question 483055: How do I find the area of any 10 floor tiles, area being side x side
Click here to see answer by Alan3354(31532)

Question 483636: The number of men attending Western Tech is 200 less than twice the number of women. The number of students at the school is 280. How man men attend? How many woman attend?
I am not sure how to come up with the correct Linear equation for this.. I tried the following
x= the # of men
2X-200=280
The answer I get is 240 but that is not what they were looking for... Can you help??

Click here to see answer by nerdybill(7008)

Question 483745: one canned juice drink is 15% orange juice, another is 10% orange juice. How many liters of each should be mixed together in order to get 5L that is 13%
Click here to see answer by Alan3354(31532)

Question 483747: a local bus tour sold 65 tickets. senior citizen tickets cost $10 and regular tickets cost $15 the total sales were $855. how many of each type of ticket were sold?
Click here to see answer by mananth(12270)

Question 483908: Two different lines are parallel if their slopes are ______.
Click here to see answer by Tatiana_Stebko(1326)

Question 483906: (-3, _____ ) is a solution of y = 4 - 3x.
Click here to see answer by Tatiana_Stebko(1326)

Question 483901: (5, 1) is a solution to the equation 2x - 3y = 7. What does this mean?

Click here to see answer by Theo(3504)

Question 483910: ( 2, -1 ) and ( 6, 3 )

Click here to see answer by Alan3354(31532)

Question 484175: If the cost of an item is reported to have decreased 400% during the past 10 years, does that mean that the cost is four times lower than the original cost? Can you explain please.
Click here to see answer by chessace(471)

Question 484112: There are 56 homes for sale with two different floor plans available. Let X represent floor plan one and y represent floor plan b. Write an equation to represent this situation. There are three times as many of the second floor plan available as the first. Write an equation that represents this situation.
I am having trouble continuing the rest of my work because I am confused as how to translate this into equations. My first equation looks like this; X+Y=56.
My second equation looks like this; y=56-3x. When I try to continue on and find the intercepts I cannot because I do not think that my equations are correct. Any suggestions?
Click here to see answer by mananth(12270)

Question 484490: I must show all steps for a word problem. I don't know how to list the 2 variables. Word problem is:"Hank Aaron hit 755 home runs. That is 637 more home runs than Ty Cobb hit. How many home runs did Ty Cobb hit?
sheath3@att.net
Click here to see answer by chessace(471)

Question 484528: write the linear equation that gives the number y degrees farhenheit in terms of the number x in degrees celcius?
Click here to see answer by stanbon(57967)

Question 484882: Please help me solve this problem: Pencils cost $6 per carton and erasers cost $3 per carton. If an order comes in for a total of 100 cartons for $360, what was the specific number of cartons of pencils?
I didn't think i had all of the information to solve such as how many cartons of erasers were ordered.
Click here to see answer by Tatiana_Stebko(1326)

Question 485497: one number exceeds another by 26. the sum of the numbers is 26. what are the numbers?
Click here to see answer by deborabr(181)

Question 485928: A train leaves station M and travels west at 35 km/hr. One hour later, a faster train leaves station M and also travels west on a parallel track at 40 km/hr. How far from station M will the faster train catch the slower one?
Click here to see answer by mananth(12270)

Question 485936: How much will you spend if you spend $2.00 every 3 minutes for 9 days?
Click here to see answer by nerdybill(7008)

Question 486071: One gallon container is full of a 75% alcohol solution. How much must be drained off and replaced by a 50% alcohol solution to produce one gallon of 65% alcohol solution?
Click here to see answer by jorel1380(2518)

Question 486098: A farmer has cows and chickens. He only sees 50 legs and 18 heads. How many are cows and howmany are chickens
Click here to see answer by MathTherapy(1483)

Question 486207: Write an equation of the line with the given y-intercept. Leave the answer in slope-intercept form. Slope -2/3, y-intercept (0,5)
Click here to see answer by mananth(12270)

Question 486431: Please help me sole this problem:
There are 13 animals in a barn. Some are chickens and some are pigs. There are 40 legs in the barn. How many are there of each animal?
Click here to see answer by Tatiana_Stebko(1326)

Question 486535: there are 5 different types of flowers. How many vases can be filled by using combinations of just 3 flowers without duplicating the 3 flowers previously used?
I'm just an old grandfather trying to help a grandson (5th grade) that I'm babysitting for. Thanks.
Click here to see answer by deborabr(181)

Question 487057: A line k passes through the points (4, 2) and (-4, 4). A second line h passes through the points (-8, 1) and (8, -3). Is line k parallel to line h? Why or why not?
Click here to see answer by John10(267)

Question 487058: The data in Table 7 shows that the percentage of female cigarette smokers in the U.S. declined from 22.1% in 1997 to 18.0% in 2006.
f = -0.47t + 22.19
B) Estimate the first year in which the percentage of female smokers is less than 10%.
Click here to see answer by Tatiana_Stebko(1326)

Question 487101: f (x) = kg(x) + 2
The function f above is defined in terms of another
function g for all values of x, where k is a constant.
If t is a number for which f (t ) = 30 and g(t) = 8,
what does k equal?
Click here to see answer by Theo(3504)

Question 487200: Table 8 lists enrollment in U.S. degree-granting institutions for both undergraduate and graduate students. A linear regression model for undergraduate enrollment is y = 0.17x + 10.1 where x represents years since 1980 and y is undergraduate enrollment in millions of students.
B) Predict the undergraduate student enrollment in 2016 (to the nearest 100,000).
Click here to see answer by josmiceli(9817)

Question 486830: Samuel has an alloy containing 11% gold. Taylor has 1/2 ounces of an alloy containing 70% gold. They combined their alloys to make an alloy with 36 2/7% gold. Gold is worth $388.31 an ounce at the current market value. Samuel estimated the value of the new alloy to be $164.38 an ounce. How many ounces of Samuel's alloy were used?
Click here to see answer by ankor@dixie-net.com(15746)

Question 488307: If I have 7th of a oz how many would I need to make a oz
Click here to see answer by nerdybill(7008)

Question 488911: 2 men and 5 women can together complete the work in 4 days while 3 mens and 6 women can finish it in 3 days .find the time taken by one man and women each to complete the work.
Click here to see answer by stanbon(57967)

Question 489153: The product of a number and seven more than the number
Click here to see answer by jorel1380(2518)

Question 489160: could please help me out on this problem 2x+ 3y=8 -x+y=-4

Click here to see answer by jorel1380(2518)

Question 489397: find the unit rate
410 miles in 16 gallons
Click here to see answer by jorel1380(2518)

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