Basic Ratios and Unit Rates

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 can a ratio be written?

Back

Front

What is the ratio of dimes to nickels if there are 10 dimes and 5 nickels?

Back

The ratio of dimes to nickels is 2 to 1.

Front

If a bag contains 3 blue marbles, 2 red marbles, and 5 yellow marbles, what is the ratio of blue marbles to all marbles?

Back

The ratio of blue marbles to all marbles is 3 to 10.

Front

In a school with 186 students and a girls to boys ratio of 4:2, how many girls are there?

Back

There are 124 girls.

Front

What does it mean if a ratio is simplified?

Back

Simplifying a ratio means reducing it to its lowest terms, where the two quantities have no common factors other than 1.

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 a unit rate from a ratio?

Back

To find a unit rate, divide both quantities in the ratio by the second quantity.

Front

If a recipe calls for 4 cups of flour and 2 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2 to 1.

Front

What is the unit rate if 60 miles are traveled in 2 hours?

Back

The unit rate is 30 miles per hour.