Unit Rates

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 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 a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity. For example, if you have 30 apples for 5 dollars, the unit rate is 30 ÷ 5 = 6 apples per dollar.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Ted can run 19.5 meters in 15 seconds, what is his speed in meters per second?

Back

Ted's speed is 19.5 ÷ 15 = 1.3 meters per second.

Tags

CCSS.7.RP.A.1

Front

If Ralph can run 25.2 meters in 18 seconds, what is his speed in meters per second?

Back

Ralph's speed is 25.2 ÷ 18 = 1.4 meters per second.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Who is faster: Ted or Ralph?

Back

Ralph is faster because he runs at 1.4 meters per second compared to Ted's 1.3 meters per second.

Tags

CCSS.5.NBT.A.3B

Front

How do you find the miles per gallon (mpg) for a car?

Back

To find mpg, divide the total miles driven by the total gallons of gas used. For example, if a car drives 527 miles on 17 gallons, the mpg is 527 ÷ 17 = 31 mpg.

Tags

CCSS.6.RP.A.3B

Front

What is the cost per hour if renting a bike costs $79.80 for 6 hours?

Back

The cost per hour is $79.80 ÷ 6 = $13.30.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you compare two different deals to find the better one?

Back

To compare deals, calculate the unit price for each option. The option with the lower unit price is the better deal.

Tags

CCSS.6.RP.A.3B

Front

What is the unit price of 8 packs of paper for $6.40?

Back

The unit price is $6.40 ÷ 8 = $0.80 per pack.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit price of 3 movie tickets for $29.25?

Back

The unit price is $29.25 ÷ 3 = $9.75 per ticket.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2