[7.PR.2a] Test ratios

Three posters cost $9.60. At that rate, how many posters can you buy for $48?

• 12 posters

• 20 posters

• 15 posters

• 24 posters

A car uses 20 gallons of fuel to travel 440 miles. How much fuel will the car use to travel 1054 miles?

• about 59 gallons

• about 48 gallons

• about 63 gallons

• about 80 gallons

An author has 18 pages to send to a publisher. The author has only small envelopes and can't fit all the pages into a single envelope. It ends up taking 6 envelopes to hold all the pages. If each envelope has the same number of pages in it, how many pages are there in each envelope?

• 4

• 5

• 6

• 3

An author has 36 pages to send to a publisher. The author has only small envelopes and can't fit all the pages into a single envelope. It ends up taking 6 envelopes to hold all the pages. If each envelope has the same number of pages in it, how many pages are there in each envelope?

• 4

• 5

• 6

• 3

The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition. How many boys participated?

• 30

• 35

• 25

• 40

The rate at which a plant grows is constant. At the 3rd week it is 12 inches tall and at the 5th week it is 20 inches tall. If this information is plotted on a coordinate plane, what is the y-coordinate of the point (1, y)?

• 4

• 8

• 12

• 16

Sarah is keeping up with how many miles her car gets per gallon. She starts with a full tank. After 448 miles, she fills up with 14 gallons. If she plots the points (0,0) and (14,448) on a coordinate plane, what would be the y-value of the point (1,y)?

• 32

• 16

• 64

• 128

Sam wants to know how long it will take to fill his baby pool that holds 24 gallons. After 1 minute, there are 2 gallons of water in the pool. He plots the points (0,0) and (1,2) on his coordinate plane. What is the x-value of the point (x, 24)?

• 6

• 12

• 24

• 36

Two posters cost $9.60. At that rate, how many posters can you buy for $48?

• 10 posters

• 20 posters

• 15 posters

• 24 posters

Four posters cost $9.60. At that rate, how many posters can you buy for $48?

• 10 posters

• 20 posters

• 15 posters

• 24 posters