Ratios and Proportions

Front

What is a ratio?

Back

A comparison of two units.

Front

Unit rates are....

Back

Ratios whereby the amount given is per 1 unit.

Front

Find the unit rate for 10 apples that cost $2.00

Back

$0.20 per apple.

Front

To find a unit rate you must

Back

Divide.

Front

If 10 people ordered soup and 23 ordered sandwiches, how many people ordered soup if 115 people ordered sandwiches? What is the best word label?

Back

Front

What is a proportion?

Back

An equation that states two ratios are equal.

Front

How do you solve a proportion?

Back

Cross-multiply and solve for the unknown.

Front

What is the unit rate for 50 miles driven in 2 hours?

Back

25 miles per hour.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions.