3-2/3-3 Practice

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 find the whole when given a part and a percent?

Back

To find the whole, divide the part by the percent (in decimal form). For example, if the part is $15,000 and the percent is 6%, the whole is $15,000 ÷ 0.06 = $250,000.

Front

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

Back

The formula is: Part = Whole × Percent (in decimal form). For example, if the whole is 50 and the percent is 40%, the part is 50 × 0.40 = 20.

Front

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

Back

The formula is: Percent = (Part ÷ Whole) × 100. For example, if the part is 20 and the whole is 50, the percent is (20 ÷ 50) × 100 = 40%.

Front

If 40% of a class of 50 students take the bus, how many students take the bus?

Back

20 students take the bus.

Front

If 50% of 16 dogs are black labs, how many black labs are there?

Back

There are 8 black labs.

Front

What does it mean to find the 'whole' in a percentage problem?

Back

Finding the 'whole' means determining the total amount from which a part is taken or a percent is calculated.

Front

What does it mean to find the 'part' in a percentage problem?

Back

Finding the 'part' means determining the specific amount that corresponds to a given percent of the whole.

Front

What does it mean to find the 'percent' in a percentage problem?

Back

Finding the 'percent' means determining what fraction of the whole the part represents, expressed as a percentage.

Front

If Henry has read 15 out of 24 chapters, what percent of the book has he read?

Back

He has read 62.5% of the book.