Proportions - Advanced Math 6

Front

What is a proportion?

Back

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

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units.

Front

If a car travels 120 miles in 2 hours, what is the unit rate in miles per hour?

Back

60 miles per hour.

Front

What is the ratio of 3 to 5 expressed as a fraction?

Back

3/5.

Front

If there are 15 cats in a shelter and the ratio of cats to dogs is 3 to 5, how many dogs are there?

Back

25 dogs.

Front

What does it mean if two quantities are in direct proportion?

Back

If two quantities are in direct proportion, as one quantity increases, the other quantity increases at a constant rate.

Front

Solve for x: 3/4 = x/16

Back

x = 12.

Front

What is the cross-multiplication method used for?

Back

Cross-multiplication is used to solve proportions by multiplying the numerator of one ratio by the denominator of the other ratio.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

How do you convert a ratio to a percentage?

Back

To convert a ratio to a percentage, divide the first number by the total of both numbers and multiply by 100.