7.PFA.1 REVIEW/UNIT 6

A dolphin travels through the water at a speed of 25 kilometers per hour. Which representation shows the distance a dolphin can travel at this rate?

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• y=x + 25, where x represents time in hours and y represents the distance in kilometers.

• 
• In 5 hours a dolphin can travel a distance of 135 kilometers.

Tags

CCSS.8.EE.B.5

Caroline's cell phone plan costs $32 per month. Which table shows the sum of the amounts that Caroline will pay for her cell phone plan over the next 4 months?

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Tags

CCSS.4.OA.C.5

During migration, a butterfly can travel 30 miles in one hour. Which graph best represents y, the number of miles a butterfly can travel in x hours?

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Tags

CCSS.8.EE.B.5

Which of these does NOT represent the distance a car travels when going 55 miles per hour?

• d=55t,

  where d represents distance and t represents time in hours

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• In 3 hours a car will travel a distance of 160 miles.

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Tags

CCSS.8.EE.B.5

An artist is making a scale model of a statue. On the model 2 inches represents 1 foot on the actual statue. Which graph best represents this relationship?

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Tags

CCSS.8.EE.B.5

Cheddar cheese costs $4.25 per pound. Which equation best represents y, the total cost of x pounds of cheddar cheese?

• x = 4.25 + y

• x = 4.25y

• y = 4.25 + x

• y = 4.25x

Tags

CCSS.6.EE.C.9

A diver had descended 64 feet under water after 4 minutes. After 6 minutes, the diver had descended 96 feet underwater. What is the constant of proportionality that relates the number of feet descended, y, to the number of minutes, x?

• 3/2

• 1/16

• 24

• 16

Tags

CCSS.7.RP.A.2B

At a school carnival, tickets can be purchased to participate in different activities. The table shows the total cost for different numbers of tickets.

What is the constant of proportionality that relates y, the total cost in dollars, to x, the number of tickets purchased?

• 4.00

• 0.25

• 1.00

• 0.10

Tags

CCSS.7.RP.A.2B

A recipe says to use 3 cups of flour to make 48 cookies. What is the constant of proportionality that relates the number of cookies made, y, to the number of cups of flour used, x?

• 0.6

• 48

• 3

• 16

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality that relates y to x?

• 1/4

• 4

• 1/8

• 8

Tags

CCSS.7.RP.A.2B