Percent Proportions

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'.

Front

How do you calculate the percent of a number?

Back

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

Front

What is the formula to find the percent of a part compared to a whole?

Back

Percent = (Part / Whole) x 100.

Front

If 3 out of 20 coins are given away, what percent is that?

Back

15%.

Front

How do you find out how many items correspond to a certain percent of a total?

Back

Multiply the total number of items by the percent (as a decimal).

Front

If Austin got 72% of 25 questions correct, how many did he answer correctly?

Back

18 questions.

Front

What is 2% of 35?

Back

0.7.

Front

If 15 out of 25 boys chose to go swimming, what percent is that?

Back

60%.

Front

How do you calculate a tip based on a percentage?

Back

Multiply the total bill by the tip percentage (as a decimal).

Front

If Daniel's meal costs $28 and he wants to leave a 20% tip, how much is the tip?

Back

$5.60.