Proportions Mixed Practice

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you find a percentage of a number?

Back

To find a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 40% of 230, calculate 230 x 0.40 = 92.

Front

What is the formula to calculate percentage?

Back

Percentage = (Part / Whole) x 100.

Front

If 71 out of 200 plants have developed seeds, how do you calculate the percentage?

Back

Percentage = (71 / 200) x 100 = 35.5%.

Front

How do you calculate the grade percentage from correct answers?

Back

Grade Percentage = (Correct Answers / Total Questions) x 100.

Front

What is the free throw percentage?

Back

Free throw percentage is calculated as (Free Throws Made / Free Throws Attempted) x 100.

Front

If Shirley spelled 12 out of 15 words correctly, what is her grade percentage?

Back

Grade Percentage = (12 / 15) x 100 = 80%.

Front

How do you find the total attempted if you know the percentage and the successful attempts?

Back

Total Attempts = Successful Attempts / (Percentage / 100). For example, if 12 free throws were made at 75%, then Total Attempts = 12 / 0.75 = 16.

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying by 100. For example, 1/4 = 0.25 x 100 = 25%.

Front

How do you calculate the number of missed questions on a test?

Back

Missed Questions = Total Questions - Correct Answers.