Ratios and proportions

Front

What is a ratio?

Back

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

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 terms and then solve for the unknown variable.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities.

Front

What is the ratio of 2 to 6 in simplest form?

Back

The simplest form of the ratio 2:6 is 1:3.

Front

Back

x = 40.

Front

What is the ratio of triangles to squares if there are 4 triangles and 3 squares?

Back

The ratio of triangles to squares is 4:3.

Front

Which of the following ratios are equivalent to 1/2: 2/4, 3/6, 6/10, 30/60?

Back

The ratio 6/10 is not equivalent to 1/2.

Front

Back

p = 308.

Front

Back

p = 5.