Rates Proportions and Applications

What is the quotient of these fractions in lowest terms?

• 6/40

• 6/10

• 3/5

• 12/20

It cost me $46.80 to fill my 13-gallon gas tank. What was the price of gas per gallon?

• $3.60

• $3.55

• $3.40

• $3.50

You travel 150 miles on 5 gallons. How far did you travel per gallon?

• 15 miles

• 30 miles

• 3 miles

• 25 miles

If Justin ordered 5 ice cream bars for $12.25, how much was each ice cream bar?

• $2.45

• $4.00

• $7.25

• $1.25

In an animal shelter, there are 5 dogs for every 20 cats. Which rate best represents the relationship between dogs and cats?

• 10 dogs for every 40 cats

• 1 dog for every 5 cats

• 2 dogs for every 10 cats

• 12 dogs for every 50 cats

When are unit rates useful? Choose the best answer.

• When you want to subtract a number by another.

• When you want to multiply one number by another.

• When you want to compare prices.

• When you want to figure out the probability of a number.

The car travels 440 miles in 8 hours. What is the unit rate?

• 12 miles per hour

• 55 miles per hour

• 110 miles per hour

• 44 miles per hour

Mrs. Nuckels used 3 cups of flour to make 60 cookies.  How many cups of flour did she use to make 90 cookies?

• 6 c.

• 30 c.

• 4 1/2 c.

• 5 c.

Mr. Foster drove 160 kilometers in 2 hours. What is the distance he can travel in 6 hours?

• 540

• 48

• 480

• 54

Eric bought 4 pairs of sports socks for $9.  How many pairs of socks can he buy for $13.50?

• 8

• 7

• 6

• 5