Percent Proportion Word Problems 2020 AMPS

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 find the total number when given a part and its percent?

Back

To find the total, divide the part by the percent (in decimal form). For example, if 25% of a total is 40, the total is 40 ÷ 0.25 = 160.

Front

What is the formula to calculate the percent of a number?

Back

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

Front

If 15% of a group is a certain number, how do you find that number?

Back

Multiply the total number by the percent (in decimal form). For example, if there are 60 dogs and 15% are puppies, the number of puppies is 60 × 0.15 = 9.

Front

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

Back

It means that the first number is one-fourth of the second number.

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 relationship between percentages and proportions?

Back

Percentages are a way to express proportions. A percentage represents how much of a whole is represented by a part.

Front

How can you estimate the percent of a group?

Back

To estimate the percent, divide the part by the whole and multiply by 100. Round to the nearest whole number if necessary.

Front

What is the percent of 24 out of 200?

Back

Percent = (24 / 200) × 100 = 12%.

Front

If a student scored 18 out of 30 on a test, what percent did they score?

Back

Percent = (18 / 30) × 100 = 60%.