Percent Proportions

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 the percentage of a number?

Back

To calculate the percentage of a number, multiply the number by the percentage (in decimal form) and then divide by 100.

Front

What is the formula to find the total when given a percentage and a part?

Back

Total = Part / (Percentage / 100)

Front

If 25% of a number is 50, what is the number?

Back

The number is 200.

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying by 100 and adding a percent sign.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100.

Front

What is 10% of 200?

Back

10% of 200 is 20.

Front

If a test has 80 questions and a student answers 64 correctly, what is their percentage score?

Back

Their percentage score is 80%.

Front

What is the formula to find the percentage of a part compared to a whole?

Back

Percentage = (Part / Whole) x 100

Front

If 60% of a class of 30 students are girls, how many girls are in the class?

Back

There are 18 girls in the class.