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24 Answered Questions for the topic Systems

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
Systems Calculus Algebra

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
Systems Math Equations

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.

11/11/16

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

Its a graphing problem

03/12/16

Sum of a larger number and twice of a smaller number is 87 . Find them if their difference is 36.

Hi, the question deals with systems of linear equations
Systems

06/14/15

Solve the following system

2x-3y+z=5     x+y+z=0   4x+2y+4z=4
Systems

06/13/15

Solve the following system

2x  +z=4   2x-y   =4    x+y-z=0

02/08/15

With a tailwind, a helicopter flies 300 miles in 1.5 hours. when the helicopter flies back, the trip takes 3 hours. Helicopter Speed? winds speed?

This is how I set up my system... but I can't solve it getting the right answer.   Let a= helicopter's speed and w=wind speed   1.5(a+w)=300 3(a-w)=300   I can't solve it. Please help. :)     more
Systems

01/27/15

interest in systems

You invest $7200 in two accounts paying 6% and 10% annual interest. At the end of the year the accounts earn the same interest. Set up a system and solve for how much was invested at each rate 

12/01/14

System of Equations word problem I can't figure out!!!!

A basketball player scored 40 points in a game. The number of three-point field goals the player made was 22 less than three times the number of free throws (each worth 1 point). Twice the number... more
Systems Algebra Linear

10/05/14

Find the inverse of the (common) coefficient matrix of the two systems.

Consider the following two systems -6x-y=2 2x-9y=3     -6x-y=3 2x-9y=2   Find the inverse of the (common) coefficient matrix of the two systems. A-1=?
Systems Math Algebra

01/19/14

How do you find the b in this: y=2x (For graphing)

............................................................
Systems

03/14/13

X+y =4 2x+3y=9

Help? Systems.. 
Systems Math Algebra

02/25/13

are these two systems CONSISTENT or INCONSISTENT? y = 2x + 5-2x + y = -2

Consistent or inconsistent? y = 2x + 5-2x + y = -2

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