Percents 2024

Front

What is a percent?

Back

A percent is a ratio that compares a number to 100. It is often used to express how much of something there is out of a total.

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 85, calculate 85 x 0.20 = 17.

Front

What does 'tip' mean in a restaurant context?

Back

A tip is a small amount of money given to service workers, like waiters, as a thank you for their service, usually calculated as a percentage of the total bill.

Front

If Mr. Linh leaves a 20% tip on an $85 dinner, how much is the tip?

Back

The tip is $17, calculated as 20% of $85.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal. It can be used to solve problems involving percentages.

Front

How do you find the number of students per class if there are 88 students in 4 classes?

Back

Divide the total number of students by the number of classes: 88 ÷ 4 = 22 students per class.

Front

If Valerie answered 28 problems correctly and this is 80% of the total problems, how do you find the total number of problems?

Back

Set up the equation: 0.80 * total problems = 28. Solving gives total problems = 35.

Front

What does 'IS' and 'OF' mean in percent problems?

Back

'IS' refers to the part or amount you have, while 'OF' refers to the total or whole amount.

Front

How do you find 60% of 85 megabytes?

Back

Multiply 85 by 0.60: 85 x 0.60 = 51 megabytes.

Front

What is the formula to find the percentage?

Back

Percentage = (Part / Whole) x 100.