M7 U2 Test Review

An inequality is shown.

3x + 2 > −1

Which of these shows a model of the inequality and the values of x that make the inequality true?

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What is the value of x in this equation?

                 4x + 6 = -62

 

Record your answer. Be sure to use the correct place value.

What is the value of x in this equation?

                   3x + 4 = -23

 

Record your answer. Be sure to use the correct place value.

The model represents an inequality.

What is the solution set for the inequality?

• x ≤ -5

• x ≤ 5

• x ≤ 1

• x ≤ -14

An equation is modeled.

What value of x makes the equation true?

• -2

• 10

• -6

• 2

The equation 2 - 3x = -4 is represented by the model shown below.
               
Which could be the first step used to solve this equation?

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This equation is modeled below.  5x = 2x + 15

What is the value of x?

• x = 3

• x = 5

• x = 6

• x = 10

The model represents the equation x - 8 = 2.

 

What is the value of x?

• x = -6

• x = 4

• x = 8

• x = 10

One weekend Greg and Darius shoveled snow to earn spending money. Together they earned $12.50 an hour for 9 hours of work. Each received half the total earnings. If Greg then spent $15 on a new CD, what was the total amount he had left, in dollars and cents, from the money he earned shoveling snow that weekend?

 

 

Record your answer. Be sure to use the correct place value.

A water tank contains 2,500 gallons. A faucet attached to the tank releases water at a constant rate of 5 gallons per minute. If the faucet is left open for 1 hour and no other water is released, which equation can be used to find r, the number of gallons of water remaining in the tank?

• r = 2,500 ÷ 5

• r = 2,500 - 60

• r = 2,500 - 60(5)

• r = 2,500 ÷ 60(5)