Ratio, Rates & Unit Rates Test Review

Front

What is a ratio?

Back

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

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity by the number of units. For example, if you travel 150 miles on 5 gallons of gas, the unit rate is 150 miles ÷ 5 gallons = 30 miles per gallon.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different kinds of quantities, such as speed (miles per hour) or price (cost per item).

Front

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

Back

102 words per minute.

Front

What is the missing number in the ratio table if the ratio is 1:5?

Back

10.

Front

Complete the ratio: 20:44. What is the simplified form?

Back

The simplified form is 5:11.

Front

Hilbert burns 120 calories per 30 minutes of weight training. How many calories does he burn in 10 minutes?

Back

40 calories.

Front

You travel 150 miles on 5 gallons. How far did you travel per gallon?

Back

30 miles.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve for a missing value in a proportion?

Back

Cross-multiply the ratios and solve for the unknown value.