Solving Proportions Practice Non word problems

Front

What is a proportion?

Back

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

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the two ratios and then solve for the unknown variable.

Front

What does cross-multiplication involve?

Back

Cross-multiplication involves multiplying the numerator of one ratio by the denominator of the other ratio.

Front

Back

Front

Back

x = 28

Front

Back

r = 32

Front

Back

x = 15

Front

Back

x = 35

Front

Back

c = 8

Front

What is the first step in solving a proportion?

Back

The first step is to set the two ratios equal to each other.