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 for finding the part when given the whole and the percent?

Back

Part = (Percent / 100) * Whole.

Front

If 50% of a number is 30, what is the number?

Back

The number is 60.

Front

What does it mean if a quantity is 25% of another quantity?

Back

It means that the quantity is one-fourth of the other quantity.

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 then multiply by 100.

Front

What is the percent increase if a price goes from $20 to $25?

Back

The percent increase is 25%.

Front

If 40% of a class of 30 students are girls, how many girls are in the class?

Back

There are 12 girls in the class.

Front

What is 10% of 200?

Back

10% of 200 is 20.

Front

How do you find the total when given a part and its percent?

Back

Total = Part / (Percent / 100).