35 Answered Questions for the topic Systems

Systems Graphs Functions

03/08/22

application problem with a linear function

Suppose that the credit remaining on a phone card (in dollars) is a linear function of the total calling time (in minutes ). When graphed, the function gives a line with a slope of -0.15. There is... more
Systems Math Functions Lines

07/26/21

stuck again with percentage question

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 65% salt and Solution B is 80% salt. She wants to obtain 150 ounces... more
Systems Math Functions Lines

07/26/21

I am not great at percentage problems, so I want someone help with this question

The Royal Fruit Company produces two types of fruit drinks. The first type is 40% pure fruit juice, and the second type is 100% pure fruit juice. The company is attempting to produce a fruit drink... more
Systems Math Functions Lines

07/21/21

A question about (Solving a tax rate or interest rate problem using a system of linear equations)

A theater group made appearances in two cities. The hotel charge before tax in the second city was $1500 lower than in the first. The tax in the first city was 6.5%, and the tax in the second city... more
Systems Math Functions Lines

07/21/21

A question about (Solving a tax rate or interest rate problem using a system of linear equations)

Last year, Shen had $20,000 to invest. He invested some of it in an account that paid 9% simple interest per year, and he invested the rest in an account that paid 7% simple interest per year.... more
Systems Math Functions Lines

07/21/21

A question about (Solving a distance, rate, time problem using a system of linear equations)

Two buses leave a station at the same time and travel in opposite directions. One bus travels 13 mih faster than the other. If the two buses are 945 miles apart after 7 hours, what is the rate of... more
Systems Math Functions Lines

07/19/21

my question about (Solving a value mixture problem using a system of linear equations)

Two mechanics worked on a car. The first mechanic charged $105 per hour, and the second mechanic charged $110 per hour. The mechanics worked for a combined total of 15 hours, and together they... more
Systems Math Functions Lines

07/19/21

my question about (Solving a value mixture problem using a system of linear equations)

A family has two cars. During one particular week, the first car consumed 40 gallons of gas and the second consumed 15 gallons of gas. The two cars drove a combined total of 1825 miles, and... more

Find the complete solution of the system of linear equations.

Find the complete solution of the system of linear equations. Express your answer in terms of t where x=x(t), y=y(t), and z=t. { x + 4y - 2z = -3 2x - y + 5z = 12 8x + 5y + 11z = 30 }(x, y, z) =... more

01/08/21

System of Equations help (Urgent)

I came across this question but I could not figure it out. Could you please help me and explain how to find the answer? Thanks! A school's students sold masks for $10 and face shields for $15... more

01/07/21

System of Equations help (Urgent)

I came across this question but I could not figure it out. Could you please help me and explain how to find the answer? Thanks!Jack solved a system of equations and ended up with 3 = 5, without... more

02/15/20

What are the weights of the five boxes?

A shipping manager wants to determine the weight of five boxes. Each weighs a different integer amount less than 100 kg. Unfortunately, the only scales available measure weights greater than 100... more

06/05/19

How would I solve a system of equations that involve logs?

I'm encountering a problem with solving this system where I can't quite figure out what direction I should be going to start this off. Here are the equations. (logx)(logy) - 3log5y - log8x =... more

02/05/19

Math lab homework

A local business wants to donate $3000 in graduation scholarships. They are looking to split this amount into a math award and a science award, and want the math award to be worth  2 3  of the... more

12/16/18

What are the maximum & minimum values for f(x, y) = 3x - 2y using the given system of inequalities?

What are the maximum & minimum values for f(x, y) = 3x - 2y using the given system of inequalities?3x + 4y ≥ -82y - 5x ≥ -4y ≤ 4
Systems Functions Lines

11/02/18

Graphing a line given its slope and y-intercept.

slope: 8 y intercept: -8
Systems

10/29/18

Solve each system with substitution.

-4x + y =6-5x - y =21Please help us understand this for an 8th grade algebra class.
Systems

09/21/17

rate of the slower train and faster train

Two trains leave towns 744mi apart at the same time and travel toward each other. One train travels 10 /mih slower than the other. If they meet in 4 hours, what is the rate of each train?
Systems

03/28/17

the sum of two numbers is 47 and the difference is 15. What are the numbers?

 i need help solving for this problem because i am very confused on it

01/25/17

(WORD PROBLEM) Solving Systems

A bicyclist heads east at 19 km/h. After she has traveled 22.5 kilometers, another cyclist sets out in the same direction going 28 km/h. About how long will it take the second cyclist to catch up... more
Systems Math

01/25/17

Solving Systems (Problem Solving)

(SOLVING SYSTEMS) the length of a rectangle is 5 times its width. The perimeter is 84. What system of equations can be solved to find its length and the width of the rectangle? And why?   I am... more
Systems

01/10/17

Writing a system of solutions

A library contains 2000 books. There are 3 times as many nonfiction books as fiction books. Write and solve a system of equations to determine the number of nonfiction and fiction books.

How would you convert 2x=12+2y to y=mx+b form?

Its a graphing problem

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