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Solving System of Equations

Authored by Anthony Clark

Mathematics

8th Grade

CCSS covered

Solving System of Equations
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jessica is solving the system of equations shown below. If she graphs this system on a coordinate plane, how could she interpret the solution of this system?

The system will be parallel.

The system will be one line.

The system will intersect at one point.

The system will intersect at two different points.

Tags

CCSS.8.EE.C.8B

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A jar contains only nickels and quarters. The total number of coins in the jar is 15. The total value of the coins is $2.35. Which system of equations represents this situation?

n + q = 2.35

.05n + .25q = 15

n + q = 15

.5n + .25q = 15

n + q =15

.05n + .25q = 2.35

.05n + q = 15

n + .25q = 2.35

Tags

CCSS.HSA.CED.A.3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The cost for renting kayaks at Company A is c = 5h + 20. The cost for renting at Company B is c = 7h + 12. What is the number of rental hours for which the cost will be the same for both companies?

4 hours

5 hours

8 hours

16 hours

Tags

CCSS.8.EE.C.8C

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jan has $100 in her bank account. She adds $15 to her account each month. Maura had $130 in her bank account . She adds $10 to her account each month. A system of equations is used to find how many monthly deposits will be needed for the accounts to have equal balances. Which graph correctly depicts this system of equations and its solution?

Media Image
Media Image
Media Image
Media Image

Tags

CCSS.8.EE.C.8C

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Determine if (4, 1) is a solution for the system of equations.
y = -x + 5
y = 2x - 7

yes

no

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the first step in solving a system by Substitution?

Make sure both equations are in standard form.

Make sure at least one equation is solved for one variable.

Make sure both equations are in slope-intercept form.

Make sure both equations can be solved.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Solve the system of equations.

(10, 3)

(6, 3)

(15, 3)

No solution

Infinite Solution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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