7R Unit 4 Percent Flashcard Review

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 by 100.

Front

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

Back

The formula is: Percent = (Part/Whole) x 100.

Front

If 25% of a number is 50, what is the number?

Back

The number is 200. (50 = 0.25 * Number; Number = 50 / 0.25 = 200)

Front

What does it mean to increase a number by a percent?

Back

To increase a number by a percent means to add that percent of the number to the original number.

Front

What does it mean to decrease a number by a percent?

Back

To decrease a number by a percent means to subtract that percent of the number from the original number.

Front

How do you find the percent increase?

Back

Percent Increase = [(New Value - Original Value) / Original Value] x 100.

Front

How do you find the percent decrease?

Back

Percent Decrease = [(Original Value - New Value) / Original Value] x 100.

Front

What is the relationship between fractions, decimals, and percents?

Back

Fractions, decimals, and percents are different ways to represent the same value. For example, 1/2 = 0.5 = 50%.

Front

If a shirt costs $40 and is on sale for 30% off, what is the sale price?

Back

The sale price is $28. (30% of $40 = $12; $40 - $12 = $28)