Percents

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 calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 75, calculate 75 * 0.20.

Tags

CCSS.6.RP.A.3C

Front

What is the formula to find the whole when given a part and a percentage?

Back

The formula is: Whole = Part / (Percentage in decimal form). For example, if 15 is 20% of a number, the whole is 15 / 0.20.

Tags

CCSS.6.RP.A.3C

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and then multiply by 100. For example, 6/24 = 0.25, which is 25%.

Front

What is the relationship between percentages and proportions?

Back

Percentages can be expressed as proportions. For example, 90% can be written as 90/100, which can be used in proportion calculations.

Front

How do you find what percentage one number is of another?

Back

To find what percentage one number (part) is of another number (whole), use the formula: (Part / Whole) * 100. For example, (6 / 24) * 100 = 25%.

Front

What is the formula for finding a percentage increase?

Back

The formula for percentage increase is: ((New Value - Original Value) / Original Value) * 100.

Tags

CCSS.6.RP.A.3C

Front

What is the formula for finding a percentage decrease?

Back

The formula for percentage decrease is: ((Original Value - New Value) / Original Value) * 100.

Tags

CCSS.6.RP.A.3C

Front

How do you solve for a number when given a percentage of it?

Back

To solve for a number when given a percentage of it, use the formula: Number = Given Percentage / (Percentage in decimal form). For example, if 75% of a number is 27, the number is 27 / 0.75.

Tags

CCSS.6.RP.A.3C

Front

What is the significance of the number 100 in percentages?

Back

The number 100 is significant in percentages because percentages are based on a scale of 100, making it easy to compare different quantities.