Unit 4 Review: Proportional Relationships and Percentages

Priya has a recipe for banana bread. She uses 7 1/2 cups of flour to make 3 loaves of banana bread.

Andre will follow the same recipe. He will make b loaves of banana bread using f cups of flour.

Which of these equations represents the relationship between b and f?

• b=2/9f

• b=2/5f

• b= 5/2f

• b=9/2f

Tags

CCSS.7.RP.A.3

Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm.

Which of these is closest to the percent error for Diego’s measurement?

• 4.3%

• 4.5%

• 95.7%

• 104.5%

Tags

CCSS.6.RP.A.3C

A car is 180 inches long. A truck is 75% longer than the car.

How long is the truck?

• 136 inches

• 315 inches

• 240 inches

• 255 inches

Tags

CCSS.6.RP.A.3C

A circular running track is 1/4 mile long. Elena runs on this track, completing each lap in 1/20 of an hour.

What is Elena’s running speed?

• 1/5

• 1 1/4

• 5

• 5/4

Tags

CCSS.7.RP.A.1

A circular running track is 1/4 mile long. Elena runs on this track, completing each lap in 1/20 of an hour.

What are the units of measurement used here?

• mph

• miles/hour

• miles per hour

Tags

CCSS.7.RP.A.1

How many degrees are in a circle?

• 360 degrees

• 180 degrees

• 100 degrees

• 90 degrees

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

The circle graph represents the number of teenagers at a high school who play video games. If 1,938 students go to the school, about how many students do not play video games?

• 101 students

• 544 students

• 803 students

• 1,394 students

Tags

CCSS.6.RP.A.3B

Today, everything at a store is on sale. The store offers a 20% discount.

The regular price of a T-shirt is $18. What is the discount price?

• $3.60

• $21.60

• $14.40

• $18.00

Tags

CCSS.6.RP.A.3C

Today, everything at a store is on sale. The store offers a 20% discount.

The discount price of a hat is $18. What is the regular price?

• $3.60

• $14.40

• $22.50

• $32.40

Tags

CCSS.6.RP.A.3C

Today, everything at a store is on sale. The store offers a 20% discount.

If the regular price of an item is x dollars, what is the discount price in dollars?

• 0.8x

• x - 0.2x

• x-20

• 0.2x

Tags

CCSS.6.RP.A.3C