Unit Rate Review

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is 1. It is often expressed as a quantity per one unit, such as miles per hour or dollars per item.

Front

How do you calculate the unit rate from a total amount and a total time?

Back

To calculate the unit rate, divide the total amount by the total time. For example, if you earned $90 in 5 hours, the unit rate is $90 ÷ 5 hours = $18 per hour.

Front

If a gas tank costs $46.80 to fill and holds 13 gallons, how do you find the price per gallon?

Back

To find the price per gallon, divide the total cost by the number of gallons: $46.80 ÷ 13 gallons = $3.60 per gallon.

Front

What is the unit price of an item?

Back

The unit price is the cost of a single unit of a product, allowing for easy comparison between different products.

Front

How do you compare unit prices of two different products?

Back

Calculate the unit price for each product and compare them. The product with the lower unit price is the better deal.

Front

If Cheerios cost $3.68 for 17 oz, what is the unit price?

Back

Unit price = Total cost ÷ Total ounces = $3.68 ÷ 17 oz = $0.216 per oz.

Front

If Apple Jacks cost $2.89 for 13 oz, what is the unit price?

Back

Unit price = Total cost ÷ Total ounces = $2.89 ÷ 13 oz = $0.222 per oz.

Front

Who has a better deal: Cheerios or Apple Jacks?

Back

Cheerios has a better deal because its unit price ($0.216 per oz) is lower than that of Apple Jacks ($0.222 per oz).

Front

How do you determine who runs faster between two runners?

Back

Calculate the pace (time per mile) for each runner and compare. The runner with the lower pace runs faster.

Front

If Reese runs 5 miles in 32 minutes, what is her pace per mile?

Back

Pace = Total time ÷ Total miles = 32 minutes ÷ 5 miles = 6.4 minutes per mile.