Ratios and Proporations

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, expressed as 'a:b' or 'a/b'.

Front

What is a proportion?

Back

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

Front

Are the ratios 2:1 and 18:9 equivalent?

Back

Yes

Front

What is an equivalent ratio?

Back

Two or more ratios with the same values.

Front

Back

3.33

Front

What is the ratio of hot dogs to cheeseburgers if there are 2 hot dogs and 4 cheeseburgers?

Back

1:2

Front

If a:b = 2:3, what is the value of b if a = 10?

Back

b = 15

Front

How do you find an equivalent ratio?

Back

Multiply or divide both terms of the ratio by the same non-zero number.

Front

Back

2.5

Front

What is the cross-multiplication method?

Back

A method used to solve proportions by multiplying the means and extremes.