Ratios and Proportions

Front

What is a Ratio?

Back

A ratio is a comparison of two quantities.

Front

If 3 pounds of hamburger costs $6, how much does 10 pounds cost?

Back

$20

Front

Solve for x: 2x + 4 = 56

Back

x = 26

Front

Solve for a: 12a - 5 = 107

Back

a = 107/12

Front

Solve for x: 4x - 3 = 1

Back

x = 1/2

Front

What is a Proportion?

Back

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

Front

If 5 apples cost $2, how much do 15 apples cost?

Back

$6

Front

What is the Cross-Multiplication Method?

Back

A method used to solve proportions by multiplying the numerator of one ratio by the denominator of the other.

Front

If 8/12 = x/36, what is x?

Back

x = 24

Front

What is a Unit Rate?

Back

A unit rate is a rate in which the second quantity is 1.