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

Tutors Answer Your Questions about Linear Equations And Systems Word Problems (FREE)

Question 125046: Write the following phrase using symbols.
Use the variable x to represent the number.

Eight less than three times a number

Click here to see answer by edjones(7569)

Question 125045:
Use the associative property of addition to write an expression
that is equivalent to the following expression.
(9 + 20) + 19

Click here to see answer by checkley71(8403)

Question 125229: If 5 is subtracted from three times a number, the result is 7 more than twice the number. What is the number?
Click here to see answer by checkley71(8403)

Question 125230: A 60 ft. pipe is divided into three peices. One peice is twice a long as the shortest peice, and the third peice is 4 feet less than five times the shortest peice. Find the length of the shortest peice.
Click here to see answer by checkley71(8403)

Question 125234:
Matthew invested some of his money at 6.5% and $450 less at 8%. His total annual intrest income is $167. How much did Matthew invest at 8%?
Click here to see answer by checkley71(8403)

Question 125235:
Jason has a pocket full of quarters and dimes. There are 58 more quarters than dimes and the total value of the change is $20.45. How many dimes are there?
Click here to see answer by checkley71(8403)

Question 125233: You have two vertical angles. One measures (4x+2) degrees. The other measures (5x-13) degrees. What is the measure of each angle?
Click here to see answer by checkley71(8403)

Question 125245: Two cars leave the same point, traveling in opposite directions. If one travels at a constant speed of 52 miles per hour and the other travels at a constant speed of 58 miles per hour. In how many hours will they be 385 miles apart?
Click here to see answer by stanbon(57282)

Question 125244: Matthew invested some of his money at 6.5% and $450 less at 8%. His total annual intrest income is $167. How much did Matthew invest at 8%?
Click here to see answer by dolly(163)

Question 125241: You have two vertical angles. One measures (4x+2) degrees. The other measures (5x-13) degrees. What is the measure of each angle?
a.) 62 and 62
b.) 28 and 28
c.) 118 and 118
d.) 19 and 19
Click here to see answer by dolly(163)

Question 125406: how many kg of cashews must be added to 20 kg of peanuts at $3.25 per kg, to get
a mixture worth $4.50 per kg solve using linear equation
Click here to see answer by stanbon(57282)

Question 125405: Martha has 56 coins, they are all dimes and quarters, they total $8.00,
how many dimes and quarters make up the $8.00, solve using linear equation
Click here to see answer by josmiceli(9664)

Question 125450: The difference between 2 times a number and -8 is -12. Find the number.
Click here to see answer by uma(370)

Question 125451: solve the equation: x+8/x+9 = 2/3
Click here to see answer by jim_thompson5910(28536)

Question 125507: Leah makes $24 per hour for a 40 hour work week and time and a half for every hour over 40 hours. If she made $1140 last week, how many overtime hours did she work?
Click here to see answer by checkley71(8403)

Question 125448: A 36 foot pipe is divided into three peices. One peice is twice as long as the shortest peice and the third peice is 1 foot longer than four times the shortest peice. Find the length of the shortest peice.
Click here to see answer by checkley71(8403)

Question 125539: Andrew invested some of his money at 7.5% and $350 less at 8%. His total interest income is $437. How much did Andrew invest at 7.5%?
Click here to see answer by checkley71(8403)

Question 125535: How many liters of pure acid must be mixed with 20 liters of a 15% solution to get a 20% mixture?
Click here to see answer by josmiceli(9664)

Question 125562: f (x) = x2to the second power 7x + 10; find (a) f (0), (b) f (5), and (c) f (-2).
Click here to see answer by solver91311(16872)

Question 125563: -3x 4y = 11 rewrite each equation as a function of x.
Click here to see answer by solver91311(16872)

Question 125571: The measure of the supplement of and angle is four times the measure of its compliment. Find the measure of the angle.
Click here to see answer by stanbon(57282)

Question 125573: solve the equation: x+8/x+9 = 2/3
Click here to see answer by stanbon(57282)

Question 125385: The demand for a certain toy is such that no one will purchase it once the price reaches $7. For every $0.02 decreases in price, 1 unit more will be sold. Write the price as a function of the number of units sold.
How many toys would you expect to be sold if the price were set at $4.79?
Click here to see answer by ankor@dixie-net.com(15645)

Question 125444: How many liters of pure acid must be mixed with 20 liters of a 15% acid solution to get 20% mixture?
Click here to see answer by ankor@dixie-net.com(15645)

Question 125601: The Denver Ducks won 2/3 of their games. The Minneapolis Moles won half of their games. The two teams played the same number of games and together won a total of 49 games. How many games did each team win?
Click here to see answer by stanbon(57282)

Question 125530: i need help with this problem ASAP please help me by tonight. thanks
the problem says

Geometry: the perimeter of a triangle is 24inches. the longest side is 4inches longer than the shortest side, and the shortest side is three fourths the length of the middle side. find the length of each side of the triangle.
please help,
thanks
Click here to see answer by scott8148(6628)

Question 125537: Kelly has a purse full of quarters and dimes. There are 58 more quaters than dimes and the total value of the change is $19.05. How many dimes are there?
Click here to see answer by ankor@dixie-net.com(15645)

Question 125692: Hello, I am having a problem solving word problems. Here is the problem:
A car rental agency advertised renting a luxury, full size car for $24.95 per day and $0.49 per mile. If you rent this car for five days, how many whole miles can you drive if you only have $200.00 to spend. I am given several answers to choose from, but I don't know how to set the problem up to solve it.
Thanks in advance for your help. Sharon
Click here to see answer by checkley71(8403)

Question 125708: if f (x) = 5x - 1, find the following: solve for f (a - 2)
Click here to see answer by solver91311(16872)

Question 125708: if f (x) = 5x - 1, find the following: solve for f (a - 2)
Click here to see answer by jim_thompson5910(28536)

Question 125701: f (x) = x2to the second power 7x + 10; find (a) f (0), (b) f (5), and (c) f (-2).: f (x) = x2to the second power 7x + 10; find (a) f (0), (b) f (5), and (c) f (-2).

Click here to see answer by solver91311(16872)

Question 125712: if f (x) = 4x - 3, find the following: f (-1)
Click here to see answer by jim_thompson5910(28536)

Question 125540: The measure of the supplement of an angle is 4 times the measure of its complement. Find the measure of the angle.
Click here to see answer by ankor@dixie-net.com(15645)

Question 125700: graph the functions.
f(x)= -2x - 5
Click here to see answer by SoOoDumb(14)

Question 125795: What equation represents the product of two consecutives even intergers that equal 224?
Click here to see answer by bucky(2189)

Question 125838: I can't figure this out for the life of me...HELP!!! This has to do with direct and inverse variation.
The problem is: x varies directly as the square of s and inversely as t. How does x change when s is doubled? When both s and t are doubled?
Please help me.
Click here to see answer by Earlsdon(6287)

Question 125890: I need help with this problem because I am totally lost. Here goes:Sally is making a cover for a round table. When finished, the cover will fit exactly with no excess hanging off. Sally has to cut the fabric circle with a founr inch larger diameter than the table to allow for hemming. If the table has a diameter of 72 inches, how much fabric does Sally need? (Use 3.14 for Pi. Round to two decimals places.) Thanks again for your help. Sharon
Click here to see answer by checkley71(8403)

Question 126053: A square animal pen and a pen shaped like an equilateral triangle have equal perimeters. Find the length of the sides of each pen if the sides of the triangular pen are fifteen less than twice a side of the square pen.
What I know: P=4s and P=3a, a=2s-15. That's all. I don't know how to use that information, if it's useful in solving the problem, or how to get started on the problem. I've tried drawing pictures and solving for various things, I'm seriously stumped and any help would be GREATLY appreciated. Thank you so much.
Click here to see answer by scott8148(6628)

Question 126141: I am completely lost on this problem can you please explain?
A sales person observes that if an item is priced at $6 per item then 4 items are sold. If it is priced at $8 per item, 2 items are sold. Find an equation to model the number y of items sold for x dollars per item.
Click here to see answer by marcsam823(57)

Question 126300: What multiplier should be used for each of the following equations to eliminate one unknown by subtraction?
3x-y = 7 2x+7y = 42
Click here to see answer by checkley71(8403)

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