Percents and Percent Proportions

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply the result by 100.

Front

What is the formula to find the percent of a number?

Back

The formula to find the percent of a number is: (Percent / 100) * Total = Part.

Front

How do you find what number a given percent is of?

Back

To find what number a given percent is of, use the formula: Part = (Percent / 100) * Total, and rearrange to find Total.

Front

What is the relationship between percent, part, and whole?

Back

The relationship is defined by the formula: Percent = (Part / Whole) * 100.

Front

How do you calculate the percent increase?

Back

Percent increase is calculated using the formula: ((New Value - Original Value) / Original Value) * 100.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate the percent decrease?

Back

Percent decrease is calculated using the formula: ((Original Value - New Value) / Original Value) * 100.

Tags

CCSS.6.RP.A.3C

Front

What is a proportion?

Back

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

Tags

CCSS.7.RP.A.2A

Front

How do you set up a proportion to solve for an unknown?

Back

To set up a proportion, create a ratio from the known values and set it equal to a ratio that includes the unknown.

Tags

CCSS.7.RP.A.2C

Front

What is the percent of a total when given a part?

Back

To find the percent of a total when given a part, use the formula: Percent = (Part / Total) * 100.