Percent and Proportions Word problem

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

What is a proportion?

Back

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

Front

How do you find the part when given the percent and the whole?

Back

To find the part, multiply the whole by the percent (in decimal form). For example, if the whole is 50 and the percent is 20%, the part is 50 * 0.20 = 10.

Front

What is the formula to calculate the percent?

Back

Percent = (Part / Whole) * 100.

Front

If 30% of a class passed a test, what does that mean?

Back

It means that 30 out of every 100 students in the class passed the test.

Front

How do you convert a percent to a decimal?

Back

To convert a percent to a decimal, divide the percent by 100. For example, 25% becomes 0.25.

Front

What is the whole in a percent problem?

Back

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

Front

If 60% of 50 people ate nachos, how many people ate nachos?

Back

30 people ate nachos (60% of 50 = 0.60 * 50 = 30).

Front

What is the missing part in the percent proportion if you know the percent and the whole?

Back

The missing part is the actual number that corresponds to the percent of the whole.

Front

How do you find the whole when given the part and the percent?

Back

To find the whole, divide the part by the percent (in decimal form). For example, if the part is 20 and the percent is 25%, the whole is 20 / 0.25 = 80.