Percent Proportions Review #1

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 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 50, calculate 50 x 0.20 = 10.

Front

What is the formula for finding the part in a percent proportion?

Back

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

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you set up a proportion to find a percentage?

Back

Set up the proportion as: part/whole = percent/100.

Front

What is the whole in a percent problem?

Back

The whole is the total amount or quantity that the percentage is being calculated from.

Front

What is the part in a percent problem?

Back

The part is the portion of the whole that corresponds to the given percentage.

Front

If 60% of a number is 30, what is the number?

Back

To find the number, use the formula: Number = Part / (Percent / 100). Here, Number = 30 / (60 / 100) = 50.

Front

What is the relationship between percent, part, and whole?

Back

The relationship is defined by the formula: Percent = (Part / Whole) x 100.

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 multiply by 100.