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 drive 60 miles in 2 hours, the unit rate is 30 miles per hour.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if 6 books cost $20.46, the unit rate is $20.46 ÷ 6 = $3.41 per book.

Front

If 4 packs of paper cost $7.44, what is the cost of one pack?

Back

The cost of one pack is $7.44 ÷ 4 = $1.86.

Front

How do you find the total cost for a different quantity using unit rate?

Back

Multiply the unit rate by the number of items you want to buy. For example, if one lollipop costs $2.30, then 6 lollipops cost $2.30 × 6 = $13.80.

Front

What is the unit rate for John who drives 54 miles in 9 days?

Back

The unit rate is 54 miles ÷ 9 days = 6 miles per day.

Front

How do you compare unit rates to find the better deal?

Back

Calculate the unit rate for each option and compare them. The option with the lower unit rate is the better deal.

Front

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

Back

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

Front

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

Back

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

Front

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

Back

7 bags for $32.76 is a better deal because the unit price is lower ($4.68 vs $4.72).

Front

What is the formula for calculating unit rate?

Back

Unit Rate = Total Quantity ÷ Number of Units.