Proportions and Unit Rates

Front

What is a proportion?

Back

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

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity.

Front

How do you find the unit rate from a table of values?

Back

To find the unit rate, divide the value of one quantity by the value of the other quantity.

Front

What is the unit rate of 10 apples for $5?

Back

The unit rate is $0.50 per apple.

Front

What does it mean if two quantities are proportional?

Back

It means that as one quantity increases or decreases, the other quantity does so at a constant rate.

Front

If a car travels 120 miles in 2 hours, what is the unit rate in miles per hour?

Back

The unit rate is 60 miles per hour.

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

True or False: A proportional relationship can be represented by a straight line through the origin on a graph.

Back

True.

Front

What is the missing value if the ratio is 3:4 and the known value is 12?

Back

The missing value is 16.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the unit rate of flour to sugar?

Back

The unit rate is 2/3 cups of flour per cup of sugar.