Use Unit Rates to Solve Problems

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something, like miles per hour or cost per item.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity by the number of units. For example, if 10 apples cost $5, the unit rate is $5 ÷ 10 apples = $0.50 per apple.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Leah grew 6 plants with 2 seed packets, how many plants can she grow with 1 seed packet?

Back

Leah can grow 3 plants with 1 seed packet (6 plants ÷ 2 seed packets = 3 plants per seed packet).

Tags

CCSS.3.OA.A.3

Front

If Tommy jarred 10 liters of jam in 2 days, how much jam does he jar per day?

Back

Tommy jars 5 liters of jam per day (10 liters ÷ 2 days = 5 liters per day).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Yoshi took 6 quizzes over 3 weeks, how many quizzes does he take per week?

Back

Yoshi takes 2 quizzes per week (6 quizzes ÷ 3 weeks = 2 quizzes per week).

Tags

CCSS.3.OA.A.2

Front

If Cara's graduation picnic costs $16 for 8 attendees, how much does it cost per attendee?

Back

It costs $2 per attendee ($16 ÷ 8 attendees = $2 per attendee).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Krystyn walked 10 kilometers in 2 trips, how many kilometers does she walk per trip?

Back

Krystyn walks 5 kilometers per trip (10 kilometers ÷ 2 trips = 5 kilometers per trip).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Leah needs to grow 9 plants, how many seed packets does she need if she can grow 3 plants per packet?

Back

Leah needs 3 seed packets (9 plants ÷ 3 plants per packet = 3 packets).

Tags

CCSS.3.OA.A.3

Front

If Tommy spent 4 days making jam and jars 20 liters, how much jam does he jar per day?

Back

Tommy jars 5 liters of jam per day (20 liters ÷ 4 days = 5 liters per day).

Tags

CCSS.7.EE.B.3

Front

If Yoshi wants to take 20 quizzes and takes 2 quizzes per week, how many weeks will it take?

Back

It will take Yoshi 10 weeks (20 quizzes ÷ 2 quizzes per week = 10 weeks).

Tags

CCSS.3.OA.A.3