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 one unit. For example, if you travel 60 miles in 2 hours, the unit rate is 30 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 quantity of one item by the quantity of another item. For example, if you buy 15 pizzas for $97.50, the unit rate per pizza is $97.50 ÷ 15 = $6.50.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit rate of a cheetah that runs 60 feet in 4 seconds?

Back

The unit rate is 60 feet ÷ 4 seconds = 15 feet per second.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a gazelle runs 100 feet in 8 seconds, what is its unit rate?

Back

The unit rate is 100 feet ÷ 8 seconds = 12.5 feet per second.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Which is faster: a cheetah at 15 ft/sec or a gazelle at 12.5 ft/sec?

Back

The cheetah is faster at 15 ft/sec.

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Front

What is the unit cost per pizza if 15 pizzas cost $97.50?

Back

The unit cost per pizza is $6.50.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you determine the better buy between two options?

Back

To determine the better buy, calculate the unit price for each option and compare them. The option with the lower unit price is the better buy.

Tags

CCSS.6.RP.A.3B

Front

What is the unit rate in miles per hour if a car travels 90 miles in 2 hours?

Back

The unit rate is 90 miles ÷ 2 hours = 45 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If you buy 22 staplers for $330, what is the unit price per stapler?

Back

The unit price per stapler is $330 ÷ 22 = $15.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If you buy 4 staplers for $80, what is the unit price per stapler?

Back

The unit price per stapler is $80 ÷ 4 = $20.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2