Rates & Proportions

Front

What is a unit rate?

Back

A unit rate is a rate in which the unit in the denominator is 1.

Front

Identify the unit rate in the following: 2 miles/second.

Back

2 miles/second is a unit rate because it compares miles to seconds.

Front

How much do 4 adult movie tickets cost if 20 tickets cost $250?

Back

4 adult tickets cost $50.

Front

Calculate the unit rate of inches per hour if it snowed 20 inches in 5 hours.

Back

The unit rate is 4 inches per hour.

Front

What is 33 feet/second classified as?

Back

33 feet/second is classified as a unit rate.

Front

Define 'rate' in mathematical terms.

Back

A rate is a ratio that compares two quantities with different units.

Front

What is the formula to find a unit rate?

Back

To find a unit rate, divide the quantity by the number of units.

Front

If a car travels 150 miles in 3 hours, what is the unit rate in miles per hour?

Back

The unit rate is 50 miles per hour.

Front

What does it mean if a rate is not a unit rate?

Back

It means the denominator is not 1, indicating a comparison of different quantities.

Front

How do you convert a ratio to a unit rate?

Back

Divide both parts of the ratio by the second part.