Modeling and Solving Equations

Modeling and Solving Equations

8th Grade

20 Qs

quiz-placeholder

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Modeling and Solving Equations

Modeling and Solving Equations

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

CCSS
6.EE.B.7, HSA.CED.A.3, 8.F.B.4

+4

Standards-aligned

Created by

Anthony Clark

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Solve for x

x = 4

x = 1

2x = 4

x = 2

Tags

CCSS.6.EE.B.7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

Subtract 7 from both sides. The solution is x = 5.

Add 7 to both sides.
The solution is x = 19.

Multiply both sides by 7 The solution is x = 84.

Tags

CCSS.6.EE.B.7

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Solve for the missing variable:

y = 7

y = 6

y = 1/6

y = 8

Tags

CCSS.6.EE.B.7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Solve for the missing variable:

21

61

- 20

24

Tags

CCSS.6.EE.B.7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Green boxes are equal to 1 and red boxes are equal to -1. Solve for x.

12 = 3x + 6

12 = 3x - 6

-12 = 3x -6

12 = -3x -6

Tags

CCSS.HSA.CED.A.3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The table below shows the temperature, T, in degrees Fahrenheit of a hot drink m minutes after it was poured into a cup.
Which equation most closely matches the data in the table?

A.  T = 180 − 5m

B.  T = 180 − 15m

C.  T = 180 − 10m

D. T = 180 − 20m

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The equation y=6.75x models the cost, in dollars, to purchase x pounds of steak at grocery store 1. Which equation models the cost of x pounds of steak at grocery store 2?

Tags

CCSS.8.EE.B.5

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