NC.7.RP.2b Exam Prep

A baker uses 1 ¹/₂ cups of flour to make 18 cookies. What is the average amount of flour used per cookie?

• ¹/₁₂ cups per cookie

• ¹/₈ cups per cookie

• 12 cups per cookie

• 27 cups per cookie

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NC.7.RP.2b

A baker is making batches of cookies. The graph shows the total number of cookies made based on the number of hours spent baking. Which is closest to the number of cookies the baker makes per hour?

• 20 cookies

• 40 cookies

• 60 cookies

• 80 cookies

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NC.7.RP.2b

An office supply store ordered 80 pens for $160. Another store ordered the same pens and paid $190 for 95 pens. What is the unit price, in dollars per pen?

• $2 per pen

• $1.50 per pen

• $2.50 per pen

• $1.75 per pen

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NC.7.RP.2b

A musician is learning new songs at a constant pace. The total number of songs learned is shown by the graph. How many songs did the musician learn each week?

• ¹/₂ of a song per week

• ³/₅ of a song per week

• 1 ²/₃ songs per week

• 2 songs per week

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NC.7.RP.2b

A delivery service uses vans to transport packages. The number of vans needed depends on the total number of small and large packages. If 3 vans were used to deliver 75 small packages and 45 large packages, what is the rate of packages per van?

• 30

• 35

• 40

• 45

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NC.7.RP.2b

A recipe calls for a specific proportion of water to rice. The table shows amounts for different servings. What is the constant of proportionality of water to rice? Record the answer as a decimal number to the nearest tenth.

Mathematical Equivalence

ON

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NC.7.RP.2b

A swimmer completes laps in a pool. He swims an average of 10 laps in 20 minutes. Which of these describes his swimming rate? (Choose up to 4 answers)

• 0.5 minutes per lap

• 0.5 laps per minute

• 2 minutes per lap

• 2 laps per minute

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NC.7.RP.2b

The graph shows the amount of paint used to cover an area. How much area can be covered per liter of paint?

• 15 square meters per liter

• 16 square meters per liter

• 18 square meters per liter

• 20 square meters per liter

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NC.7.RP.2b

A 6-pack of yogurt costs $4.14, and a 12-pack of the same yogurt costs $8.04. Which statement is true and can be used to determine the better buy?

• The unit rate per yogurt cup of the 6-pack is $0.02 less than the unit rate of the 12-pack.

• The unit rate per yogurt cup of the 6-pack is $0.02 more than the unit rate of the 12-pack.

• The unit rate per yogurt cup of the 6-pack is $0.20 less than the unit rate of the 12-pack.

• The unit rate per yogurt cup of the 6-pack is $0.20 more than the unit rate of the 12-pack.

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NC.7.RP.2b

A cyclist recorded the time spent riding and the distance covered in the table. How many miles can the cyclist cover in one hour?

• 16

• 10

• 20

• 8

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NC.7.RP.2b