Unit Rate

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. For example, if you can drive 60 miles in 1 hour, the unit rate is 60 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the first quantity by the second quantity. For example, if you have 150 calories in 3 servings, the unit rate is 150 ÷ 3 = 50 calories per serving.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Ben drinks 1/2 liter of tea every 2/3 of an hour, how much tea does he drink per hour?

Back

3/4 of a liter per hour.

Tags

CCSS.7.RP.A.1

Front

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

Back

102 words per minute.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Which of the following is a unit rate: 10 miles / 2 hours, $6 for each hour, 1 box / $3, 15 pounds every 5 servings?

Back

$6 for each hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Luke can paint 91 portraits in 7 weeks. How many portraits does he paint each week?

Back

13 portraits per week.

Tags

CCSS.3.OA.A.2

Front

What is the unit price of Doritos if they cost $4.39 for 11.5 oz?

Back

$4.39 ÷ 11.5 oz = $0.38 per oz.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit price of Cheetos if they cost $2.24 for 9.75 oz?

Back

$2.24 ÷ 9.75 oz = $0.23 per oz.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Which is the better deal: Doritos or Cheetos?

Back

Cheetos, because they have a lower unit price.

Tags

CCSS.6.RP.A.3B

Front

What is the formula for finding the unit rate?

Back

Unit Rate = Total Quantity / Total Time or Total Cost.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2