1,384 Answered Questions for the topic Linear Equations

HELP!! I dont understand this word problem!

An investment is worth $3980 in 1994. By 1999 it has grown to $6380. Let y be the value of the investment in the year x, where x=0 represents 1994. Write a linear equation that relates the value of... more
Linear Equations Math Math Equations

02/15/15

Sal added 1.2 gallons of water to a bucket that was already half full. The total volume of water after Sal added 1.2 gallons was 3.7 gallons. Write the equation

Please write a linear equation to find the total capacity, c , of the bucket.
Linear Equations

02/13/15

solving system of equations by substitution

2b=6a-14 3a-b=7
Linear Equations

02/13/15

Input the equation of the given line in standard form. The line with m = -1/2 and the point (-2, -3).

this question regards linear equations and i'm not sure as to what m stands for and i dont know the process of putting this into standard form
Linear Equations

02/12/15

find the dimension of the rectangle that has a perimeter of 44 inches and a legth that is two more than three times the width

find the dimension of the rectangle that has a perimeter of 44 inches and a legth that is two more than three times the width. I need to get te the:   x = ______________ =... more
Linear Equations

02/11/15

i need help step by step the equation would fit in here so its in the description box

A theater group made appearances in two cities. The hotel charge before tax in the second city was $500 higher than in the first. The tax in the first city was 6% , and the tax in the second city... more
Linear Equations

02/11/15

my question is in the description since i cant fit it here

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 55% salt and Solution B is 80% salt. She wants to obtain 90 ounces... more
Linear Equations Story Problems

02/11/15

Solving value mixture problem using a linear equation

At the city museum, child admission is $6.30 and adult admission is $9.50. On Wednesday 176 tickets were sold for a total sales of $1355.20. How many child tickets were sold that day?
Linear Equations

02/05/15

I need some help with a word problem, the instructions get a little too complicated for me, which is why I'm in a math prep class in college.

An actor invests some money at 8% and $25000 more than four times the amount at 9%. The total annual interest earned from the investment is $54170. How much did he invest at each amount
Linear Equations

02/05/15

Linear equation, y = mx + b

Ann is 2x years old, and Dave is 3y years old. Ann is 3 times older than Dave. H2 years later, if you add Ann's and Dave's age together then you will get 28. What is Ann's and Dave's age?
Linear Equations

02/03/15

make a linear equation

A community bird-watching society makes and sells simple bird feeders to raise money for its conservation activities. They sell 32 per week at a price of $10 each. They are considering raising the... more
Linear Equations Algebra

02/02/15

6(1+9x)=-20

How do I solve this problem   
Linear Equations

02/01/15

Margarita is hired by an accounting firm at a salary of $60,000 per year. Three years later her annual salary has increased to $70,500.

Margarita is hired by an accounting firm at a salary of $60,000 per year. Three years later her annual salary has increased to $70,500. Assume her salary increase linearly. Find an equation that... more
Linear Equations

01/31/15

Between to rental car companies, with a daily rate and per mile charge, what number of daily miles is the second company cheaper?

A rental car company rents a car for $25.24 per day plus .48 per mile.  A second rental car company rents the same car for $42.51 per day plus .37 cents per mile.  For what number of daily miles is... more
Linear Equations

01/29/15

graphing a linear equation

can you determine how many  solutions 2 equations has without graphing 
Linear Equations

01/28/15

word problem

one year, mr.newby and his wife wilma together earned $47000. if mr.newby earned $4000 more than wilma earned that year, how much did each earn?
Linear Equations

01/28/15

word problem

a dealer has some hard candy worth $2.00 a pound and some worth $3.00 a pound. he wishes to make a mixture of 80 pounds that he can sell for $2.20 a pound. how many pounds of each kind should he use?
Linear Equations

01/28/15

what distance will the constable catch the thief

thief is running at a speed of 6km/h and police is chasing with a speed of 8km/h and the distance between them is 500m
Linear Equations

01/27/15

word problems

a dealer sold 200 tennis racquets. some were sold at $18 each, and the rest $33 each. the total receipts from these sales were $4800. how many of each racquets were sold?
Linear Equations

01/23/15

liner problem

(d) Editing and printing proofs of the photos cost the photographer $5.79 each. The photographer also has to pay salaries of $400 for the day. Write an equation for the profit P made by the... more
Linear Equations Linear Systems Rate Linear System

01/22/15

What is the mass for each type?

One type of granola is 30% fruit and another type is 15% fruit. What mass of each type of granola should be mixed to make 600g of granola that is 21% fruit?
Linear Equations Linear Systems

01/22/15

Does (5,-6) satisfy the equation 3x-2y-26=0 ?

Does (5,-6) satisfy the equation 3x-2y-26=0 ?
Linear Equations

01/21/15

How much of the 30% solution should the chemist use?

A chemist is mixing a 30% salt solution with a 20% salt solution to make 40 L of a new solution that will contain 25% salt. How much of the 30% solution should the chemist use?
Linear Equations

01/21/15

Find the speed of the plane with no wind and the windspeed.

It took an airplane 4hours to fly 1,600mi against a headwind. The return trip with the wind took 313hours. Find the speed of the plane with no wind and the windspeed.

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