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 20, what is the number?

Back

Number = 20 / (25 / 100) = 80

Front

What does it mean if a student scores 72% on a test?

Back

It means the student answered 72 out of every 100 questions correctly.

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.

Front

What is the relationship between percent, fraction, and decimal?

Back

Percent is a fraction with a denominator of 100, and it can also be expressed as a decimal by dividing by 100.

Front

If 40 is 75% of a number, how do you find that number?

Back

Number = 40 / (75 / 100) = 53.33

Front

What is 34% of 200?

Back

34% of 200 = 0.34 * 200 = 68.

Front

If a class has 30 students and 10% are absent, how many students are absent?

Back

Absent students = 30 * (10 / 100) = 3.