Unit Rates

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something, like miles per hour or cost per item.

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 have 60 miles in 3 hours, the unit rate is 60 miles ÷ 3 hours = 20 miles per hour.

Front

What is the unit rate of 408 words in 4 minutes?

Back

102 words per minute.

Front

If Juju bought 5 books for $7, what is the cost of one book?

Back

$1.40 per book.

Front

What is the cost per pound of bananas if 4 pounds cost $6?

Back

$1.50 per pound.

Front

If you spend $40 on 5 pounds of concrete, what is the unit rate in dollars per pound?

Back

$8 per pound.

Front

What does the term 'ratio' mean?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

4 to 3.

Front

How can you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both quantities by their greatest common divisor.

Front

What is an example of a real-life unit rate?

Back

An example of a real-life unit rate is the speed of a car, such as 60 miles per hour.