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 the unit price of an item?

Back

To calculate the unit price, divide the total price by the number of units. For example, if 9 candy bars cost $13.50, the unit price is $13.50 ÷ 9 = $1.50 per candy bar.

Front

If a store sells 5 books for $26.35, what is the unit price per book?

Back

The unit price per book is $26.35 ÷ 5 = $5.27.

Front

Which is a better buy: 20 pounds of pet food for $14.99 or 50 pounds for $37.99?

Back

20 pounds for $14.99 is a better buy because the unit price is lower.

Front

What is the formula to find the unit rate?

Back

The formula to find the unit rate is: Unit Rate = Total Quantity / Total Price.

Front

If a car travels 280 miles in 7 hours, how far will it travel in 12 hours?

Back

The car will travel 480 miles in 12 hours.

Front

What is the unit price of 10 pens for $8.99?

Back

The unit price is $8.99 ÷ 10 = $0.899 per pen.

Front

How do you compare unit prices?

Back

To compare unit prices, calculate the unit price for each option and then compare the values. The lower unit price is the better deal.

Front

If 25 pens cost $19.75, what is the unit price?

Back

The unit price is $19.75 ÷ 25 = $0.79 per pen.

Front

What does it mean if a rate varies directly?

Back

If a rate varies directly, it means that as one quantity increases, the other quantity increases at a constant rate.