Percent Proportions- 7th grade

Front

What is a percent?

Back

A percent is a ratio that compares a number to 100. It is often used to express how much of something there is in relation to a whole.

Front

How do you calculate the percentage of a part compared to a whole?

Back

To calculate the percentage, divide the part by the whole and then multiply by 100. Formula: (Part/Whole) x 100 = Percentage.

Front

If 35 boys represent 5% of the total enrollment, how do you find the total enrollment?

Back

To find the total enrollment, divide the part (35 boys) by the percentage (5%) expressed as a decimal (0.05). Total Enrollment = 35 / 0.05 = 700.

Front

What is the formula for finding a part when given a percentage and a whole?

Back

The formula is: Part = (Percentage/100) x Whole.

Front

What percentage of 100 students wore brown if 74 wore brown?

Back

Percentage = (74/100) x 100 = 74%.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100.

Front

What is 25% of $3.20?

Back

25% of $3.20 is calculated as (25/100) x 3.20 = $0.80.

Front

If Bonnie scored 21 out of 84 on her test, how do you find her percentage score?

Back

Percentage Score = (21/84) x 100 = 25%.

Front

What does 'whole' refer to in percent problems?

Back

The 'whole' refers to the total amount or total number that is being considered in a percent problem.

Front

What does 'part' refer to in percent problems?

Back

The 'part' refers to the specific amount or number that is being compared to the whole in a percent problem.