Percent of a Number

Front

What is the formula to find a percentage of a number?

Back

To find a percentage of a number, use the formula: (Percentage / 100) * Number.

Front

How do you calculate 30% of 130?

Back

30% of 130 is calculated as (30 / 100) * 130 = 39.

Front

If 30% of the exhibits contain birds, how do you find the number of exhibits that do not contain birds?

Back

To find the number of exhibits that do not contain birds, subtract the number of exhibits with birds from the total: 130 - (30 / 100 * 130) = 91.

Front

What is 40% of 55 jellybeans?

Back

40% of 55 is calculated as (40 / 100) * 55 = 22.

Front

How do you find what percent 19 out of 25 is?

Back

To find the percentage, use the formula: (Correct Answers / Total Questions) * 100. So, (19 / 25) * 100 = 76%.

Front

What does it mean to find 118% of a number?

Back

Finding 118% of a number means you are calculating the number plus an additional 18% of that number.

Front

How do you calculate 12% of 85?

Back

12% of 85 is calculated as (12 / 100) * 85 = 10.2.

Front

What is the relationship between fractions and percentages?

Back

A percentage is a fraction out of 100. For example, 25% is equivalent to 25/100.

Front

How can you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide by 100. For example, 76% becomes 0.76.

Front

What is the first step in solving a percentage problem?

Back

The first step is to identify the total amount and the percentage you need to calculate.