Unit Test - Ratio and Unit Rates (12/22)

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:b'.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'x per 1 unit'.

Front

How do you find the unit rate from a ratio?

Back

To find the unit rate, divide the first quantity by the second quantity to express it per one unit.

Front

What is the ratio of books sold to movies sold if 8 books and 6 movies are sold?

Back

The ratio is 8:6, which can be simplified to 4:3.

Front

If a bag contains 5 red marbles, 4 blue marbles, and 2 green marbles, what is the total number of marbles?

Back

The total number of marbles is 5 + 4 + 2 = 11.

Front

What is the ratio of red marbles to total marbles if there are 5 red marbles in a total of 11 marbles?

Back

The ratio is 5:11.

Front

If a car travels 240 miles in 4 hours, what is the miles per hour?

Back

The car travels at a rate of 60 miles per hour.

Front

How do you calculate miles per gallon?

Back

To calculate miles per gallon, divide the total miles traveled by the total gallons of gas used.

Front

If a car travels 360 miles on 12 gallons of gas, what is the miles per gallon?

Back

The miles per gallon is 30.