Solving Proportions

Front

An equation that shows two equivalent ratios is called a___________.

Back

Proportion

Front

Back

60 = 15c

Front

Back

4x = 192

Front

What is the correct proportion that is used to solve: George pays $3 for every 5 donuts he buys. If he buys 25 donuts, how much will he pay?

Back

Front

Back

5x = 120

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you cross-multiply to solve proportions?

Back

To solve proportions, multiply the numerator of one ratio by the denominator of the other ratio.

Front

Back

ad = bc.

Front

What is the first step in solving a proportion?

Back

Identify the two ratios and set them equal to each other.

Front

If George buys 10 donuts, how much will he pay if he pays $3 for every 5 donuts?

Back

$6.