Rates & Unit Rate Flashcard

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 60 miles in 1 hour, the unit rate is 60 miles per hour.

Front

How do you find the unit rate?

Back

To find the unit rate, you divide the total quantity by the number of units. For example, if there are 120 customers in 6 hours, the unit rate is 120 ÷ 6 = 20 customers per hour.

Front

What is a ratio?

Back

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

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two quantities with different kinds of units, such as miles per hour or dollars per pound.

Front

What is a complex fraction?

Back

A complex fraction is a fraction where the numerator, the denominator, or both are also fractions.

Front

If a store sells 240 items in 8 hours, what is the unit rate in items per hour?

Back

30 items per hour.

Front

What operation do you use to simplify a complex fraction?

Back

You typically use division to simplify a complex fraction.

Front

What is the difference between a ratio and a rate?

Back

A ratio compares two quantities of the same kind, while a rate compares two quantities of different kinds.

Front

If Brian reads 90 words in 3 minutes, what is his unit rate in words per minute?

Back

30 words per minute.

Front

What is the unit rate if a car travels 150 miles in 3 hours?

Back

50 miles per hour.