Ratios and Proportional Relationships

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you find the total number of items in a ratio problem?

Back

To find the total number of items, add the parts of the ratio together.

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 is constant.

Front

How can you tell if a table of values represents a proportional relationship?

Back

If the ratios of corresponding values are equivalent, the table represents a proportional relationship.

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different.

Front

How do you create equivalent ratios?

Back

To create equivalent ratios, multiply or divide both terms of the ratio by the same non-zero number.

Front

What is the ratio of pears to all fruit if there are 4 apples, 2 bananas, and 5 pears?

Back

The ratio of pears to all fruit is 5:11.

Front

If you earn $15 every 3 weeks, how much will you earn in 5 weeks?

Back

You will earn $25 in 5 weeks.

Front

What is the ratio of red to yellow marbles if there are 2 red and 5 yellow?

Back

The ratio of red to yellow marbles is 2 to 5.

Front

What does it mean for a ratio to be simplified?

Back

A simplified ratio is expressed in its lowest terms, where the two quantities have no common factors other than 1.