Ratios and Proportions

Front

What are unit rates?

Back

Ratios whereby the amount given is per 1 unit.

Front

What is the ratio of strawberries to the total if there are 20 strawberries and 35 grapes?

Back

20:55

Front

If the ratio of cups of coffee sold to hot chocolate is 100 to 5, how many cups of hot chocolate are sold if 2,000 cups of coffee are sold?

Back

100 cups of hot chocolate.

Front

What is a variable in mathematics?

Back

A lowercase letter that represents an unknown.

Front

Find the unit rate for 10 apples that cost $2.00.

Back

$0.20 per apple.

Front

What is a ratio?

Back

A comparison of two quantities by division.

Front

How do you simplify a ratio?

Back

Divide both terms of the ratio by their greatest common factor.

Front

What is a proportion?

Back

An equation that states that two ratios are equal.

Front

If 3/4 of a pizza is left and you eat 1/4, what fraction of the pizza is left?

Back

1/2 of the pizza is left.

Front

How do you find a missing value in a proportion?

Back

Cross-multiply and solve for the unknown.