Percent Proportions Review #2

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 the percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (in decimal form) and then divide by 100.

Front

What is the formula to find what percent one number is of another?

Back

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

Front

If 20 is 40% of a number, how do you find that number?

Back

Divide 20 by 0.40 to find the whole number.

Front

What percent of 50 is 20?

Back

40%.

Front

How do you convert a fraction to a percent?

Back

Divide the numerator by the denominator and multiply by 100.

Front

What is 40% of 230?

Back

92.

Front

If 225 out of 250 seats are sold, what percent of seats are empty?

Back

10%.

Front

What is the relationship between percent, fraction, and decimal?

Back

Percent is a fraction with a denominator of 100, and it can also be expressed as a decimal by dividing by 100.

Front

How do you find the percent increase?

Back

Subtract the original number from the new number, divide by the original number, and multiply by 100.