NC.7.EE.4a Exam Prep

Marcus had a $25 credit on his account at a video game store. He purchased 3 games, each costing the same price. After his credit was applied, his total bill was $32.50. Which equation can be used to find (g), the price of each game?

• 3g - 25 = 32.50

• 25 - 3g = 32.50

• 3g + 25 = 32.50

• 25g - 3 = 32.50

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NC.7.EE.4a

Mathematical Equivalence

ON

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NC.7.EE.4a

Maria has two part-time jobs. At her first job, she earns $15 per hour. Last month, she worked 60 hours at her first job and a total of 100 hours between both jobs. If her total earnings last month were $1,800, how much did she earn per hour at her second job?

• $18.75

• $20.00

• $22.50

• $25.00

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NC.7.EE.4a

A moving company charges a flat rate of $75, plus $45 per hour for labor. How much would it cost to hire the company for a job that takes 3 hours and 30 minutes?

• $116.50

• $232.50

• $202.50

• $157.50

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NC.7.EE.4a

A t-shirt printing service charges a $50 design fee, plus $8.50 per t-shirt printed. How much would it cost to print shirts for the entire soccer team of 15 players, plus the coach?

• $127.50

• $177.50

• $186.00

• $128.50

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NC.7.EE.4a

A hot air balloon company charges a booking fee plus a price per person. For 3 people, the total cost was $325. For 5 people, the total cost was $475. Which of the following equations represents this situation, where p represents the number of people and c represents the total cost?

• c = 75p + 100

• c = 70p + 115

• c = 65p + 120

• c = 75p + 75

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NC.7.EE.4a

If 5 less than 3 times a number is 22, what is the number?

• 9

• 7

• 11

• 5

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NC.7.EE.4a

A large water tank holds 120 gallons. It is being filled by a hose, and it already contains 15 gallons of water. It takes 5 minutes to fill the remaining portion of the tank using the hose.

The equation 120 = 5m + 15 represents this situation, where (m) is the rate at which the hose fills in gallons per minute. What is the filling rate of the hose?

• 21 gallons per minute

• 24 gallons per minute

• 27 gallons per minute

• 105 gallons per minute

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NC.7.EE.4a

Jessica is working on an equation where she needs to find the value of x in 2x - 3 = -11. What should Jessica's final answer be?

• x = -4

• x = 4

• x = -7

• x = 7

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NC.7.EE.4a

• 55

• 40

• 25

• 15

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NC.7.EE.4a