Unit Rate & Proportions

Front

What is a unit rate?

Back

A unit rate is a rate in which the unit in the denominator is 1.

Front

If a car travels 120 miles in 2 hours, what is the unit rate in miles per hour?

Back

60 miles per hour.

Front

How do you calculate the unit rate from a ratio?

Back

Divide the numerator by the denominator.

Front

If a recipe requires 3 cups of flour for 4 servings, how much flour is needed per serving?

Back

0.75 cups of flour per serving.

Front

What is the unit rate of 15 apples for $3?

Back

5 apples per dollar.

Front

If a runner completes 10 laps in 20 minutes, what is the unit rate in laps per minute?

Back

0.5 laps per minute.

Front

How many gallons flow from a faucet at a rate of 5 gallons every 25 seconds in 45 seconds?

Back

9 gallons.

Front

A machine can pack 70 boxes in 5 minutes. How many boxes can it pack in 8 minutes?

Back

112 boxes.

Front

If Antonia can type 408 words in 4 minutes, how many words can she type per minute?

Back

102 words per minute.

Front

Harry mowed eight lawns and earned $96. How much did he earn for each lawn?

Back

$12 per lawn.