Solving Linear Systems by Elimination

Question 1

The solution to the system is

Revolt · Accepted Answer

:  "0.5"; :  "3"

Question 2

You could produce a pair of like terms with opposite coefficients by multiplying the first equation by what number?

Revolt · Accepted Answer

C: 6

Question 3

How could you solve this system using elimination? Check all that apply.

Revolt · Accepted Answer

B: Multiply the first equation by 5 and the second equation by 2, then add.; C: Multiply the first equation by 2 and the second equation by 5, then subtract.

Question 4

Solve the system to complete the statement.

Revolt · Accepted Answer

: 1/12; : 1/8

Question 5

It takes a printer 212 min to print 24 black-and-white pages and 4 color pages. It takes the same printer 314 min to print 30 black-and-white pages and 6 color pages. Let b represent the time in minutes needed to print a black-and-white page and c represent the time in minutes needed to print a color page.

Revolt · Accepted Answer

:  "1/12"; :  "1/8"

Question 6

Which equation results when you add the equations?

Revolt · Accepted Answer

B:

Question 7

Complete the second equation below so that the terms in the system align. ⇒ -3x+ ⇒ 2y= ⇒ -22

Revolt · Accepted Answer

-22

Question 8

The solution to the system is (, ).

Revolt · Accepted Answer

-5

Question 9

Which of the following shows the system with like terms aligned?

Revolt · Accepted Answer

C: -4x + 0.4y = -0.8 6x + 0.4y = 4.2

Question 10

How can subtracting the equations help you solve the system?

Revolt · Accepted Answer

B: It eliminates the y-terms.

Solving Linear Systems by Elimination Answers

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