Proportions and Unit Rates

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity of one.

Front

How can you identify a proportional relationship from a table?

Back

A proportional relationship can be identified if the ratios of the corresponding values are equal.

Front

What is the unit rate of 4 apples for $2?

Back

The unit rate is $0.50 per apple.

Front

True or False: A relationship is proportional if it includes a fixed fee plus a variable cost.

Back

False. A proportional relationship does not include fixed fees.

Front

If a car travels 300 miles in 5 hours, what is the unit rate of miles per hour?

Back

The unit rate is 60 miles per hour.

Front

What does it mean if a graph is a straight line through the origin?

Back

It indicates a proportional relationship between the two variables.

Front

If the cost of 3 notebooks is $6, what is the cost of 1 notebook?

Back

The cost of 1 notebook is $2.

Front

What is the formula to find the unit rate?

Back

The formula to find the unit rate is: Unit Rate = Total Quantity / Number of Units.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, is this a proportional relationship?

Back

Yes, because the ratio of flour to sugar remains constant.