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 a quantity of one. For example, if a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity of one item by the quantity of another item. For example, if you buy 4 apples for $2, the unit rate is $2 ÷ 4 apples = $0.50 per apple.

Front

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

Back

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

Front

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

Back

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

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.

Front

What is the unit rate of a train that travels 1,230 miles in 5 hours?

Back

The unit rate is 1,230 miles ÷ 5 hours = 246 miles per hour.

Front

How do you determine which deal is better when comparing prices?

Back

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

Front

If 5 bags of apples cost $23.60, what is the unit price per bag?

Back

The unit price is $23.60 ÷ 5 bags = $4.72 per bag.

Front

If 7 bags of apples cost $32.76, what is the unit price per bag?

Back

The unit price is $32.76 ÷ 7 bags = $4.68 per bag.

Front

Which is the better deal: 5 bags for $23.60 or 7 bags for $32.76?

Back

The better deal is 7 bags for $32.76 because the unit price is lower at $4.68 per bag.