Review for Test: Ratios and Proportions

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division. It shows how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

A ratio can be written in three ways: as a fraction (e.g., 2/3), with a colon (e.g., 2:3), or in words (e.g., '2 to 3').

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal. For example, if a/b = c/d, then a, b, c, and d are in proportion.

Front

How do you solve a proportion?

Back

To solve a proportion, you can cross-multiply. For example, if a/b = c/d, then ad = bc.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.

Front

If there are 2 large circles and 5 quadrilaterals, what is the ratio of large circles to all quadrilaterals?

Back

Front

How many cups are in 10 gallons of milk?

Back

There are 160 cups in 10 gallons of milk.

Front

If 5 out of 600 cameras have defects, how many cameras were packaged if 2 had defects?

Back

240 cameras were packaged.

Front

If a computer company can build 96 laptops in 8 hours, how many can they build in 8 hours?

Back

They can build 12 laptops in 8 hours.

Front

What is the height of a fountain at the 10th hour if it shoots water every hour?

Back

The height of the fountain at the 10th hour is 50 feet.