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 one unit. 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 a pack of 10 slices of cheese costs $2.48, the unit price is $2.48 ÷ 10 = $0.248 per slice.

Front

If a 12 pack of Coke costs $3.50, what is the unit price per can?

Back

The unit price per can is $3.50 ÷ 12 = $0.2917, or approximately 29 cents per can.

Front

What is the unit rate of pages read per minute if Charlotte read 68 pages in 34 minutes?

Back

The unit rate is 68 pages ÷ 34 minutes = 2 pages per minute.

Front

Which of the following is a unit rate: 4 dogs, 1 yard, 0.3 miles per minute, or 1 minute per 3 feet?

Back

0.3 miles per minute is a unit rate because it compares miles to minutes.

Front

How do you convert a fraction to a unit rate?

Back

To convert a fraction to a unit rate, divide the numerator by the denominator and express it in terms of one unit. For example, 1/2 liter every 2/3 hour is converted to 1/2 ÷ (2/3) = 3/4 liter per hour.

Front

What is the better deal: 10 slices for $2.48 or 12 slices for $3.18?

Back

Calculate the unit prices: Sargento: $2.48 ÷ 10 = $0.248 per slice; Velveeta: $3.18 ÷ 12 = $0.265 per slice. Sargento is the better deal.

Front

If Ben drinks 1/2 liter of tea every 2/3 of an hour, how much does he drink per hour?

Back

Ben drinks 3/4 of a liter per hour.

Front

What is the formula to find the unit rate?

Back

The formula to find the unit rate is: Unit Rate = Total Quantity ÷ Total Time.

Front

If a car travels 150 miles in 3 hours, what is the unit rate in miles per hour?

Back

The unit rate is 150 miles ÷ 3 hours = 50 miles per hour.