Unit Rates and Comparing 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 60 miles in 1 hour, 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 the other item. For example, if 10 slices of cheese cost $2.48, the unit rate is $2.48 ÷ 10 = $0.248 per slice.

Front

What is the unit price of an item?

Back

The unit price is the cost per single unit of measure, such as per ounce, per pound, or per item. It helps compare prices of different sizes or quantities.

Front

If Sasha can mow 3/8 of an acre in 3/4 of an hour, how do you find the acres mowed per hour?

Back

To find the acres mowed per hour, divide the acres mowed by the time taken in hours: (3/8) ÷ (3/4) = (3/8) * (4/3) = 1/2 acres per hour.

Front

What is the unit price of Sargento cheese slices if they cost $2.48 for 10 slices?

Back

The unit price is $2.48 ÷ 10 = $0.248 per slice.

Front

How do you compare unit prices of two 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 Kevin bought 3 lbs of lettuce for $3.54, how do you find the cost per pound?

Back

Divide the total cost by the weight: $3.54 ÷ 3 lbs = $1.18 per pound.

Front

What is the unit price of Goldfish crackers if they cost $1.99 for 7.2 oz?

Back

The unit price is $1.99 ÷ 7.2 oz = approximately $0.2764 per oz.

Front

What is the unit price of Cheez-its if they cost $2.70 for 13.7 oz?

Back

The unit price is $2.70 ÷ 13.7 oz = approximately $0.1971 per oz.

Front

Which of the following is NOT a unit rate? 27 sandwiches in 3 weeks, 45 miles per hour, 2 cars in 1 lane, 2 tanks of gas in 1 yard.

Back

27 sandwiches in 3 weeks is NOT a unit rate because it does not express a quantity per one unit.