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 buy 3 apples for $6, the unit rate is $2 per apple.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the total quantity by the number of units. For example, if you travel 150 miles in 3 hours, the unit rate is 150 miles ÷ 3 hours = 50 miles per hour.

Front

What is the unit price?

Back

The unit price is the cost for one unit of a product. It helps consumers compare prices and find the best deal.

Front

How do you find the better deal between two products?

Back

To find the better deal, calculate the unit price for each product and compare them. The product with the lower unit price is the better deal.

Front

If 8 packs of paper cost $6.40, what is the unit price per pack?

Back

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

Front

If Peter paid $79.80 for 6 hours of bike rental, how much did he pay per hour?

Back

He paid $79.80 ÷ 6 hours = $13.30 per hour.

Front

How do you compare speeds of two runners?

Back

To compare speeds, calculate the distance each runner covers per unit of time (e.g., meters per second) and compare the results.

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

How do you calculate miles per gallon (mpg)?

Back

To calculate mpg, divide the total miles driven by the total gallons of fuel used. For example, if Brad drives 527 miles on 17 gallons, he drives 527 miles ÷ 17 gallons = 31 mpg.