Ratios, Unit Rates, and Proportions

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 simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor (GCF).

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if you travel 60 miles in 2 hours, the unit rate is 30 miles per hour.

Front

What is the difference between a rate and a unit rate?

Back

A rate compares two different units, while a unit rate compares a quantity to one unit of another quantity.

Front

How do you find a missing value in a proportion?

Back

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they maintain a constant ratio or rate.

Front

If there are 60 cookies and 10 cupcakes, what is the ratio of cupcakes to cookies in simplest form?

Back

1:6

Front

Back

12

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities increase or decrease at the same rate, maintaining a constant ratio.

Front

How can you determine if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it passes through the origin (0,0) and is a straight line.