Proportions Percent Proportions and Percent Change

What is 15% of 82?

• 12.3

• 123

• 1.23

• 15

What is 50% of 150?

• 7.5

• 75

• 750

• 0.75

What is 20% of 75?

• 15

• 60

• 6

• 1.5

What percent of 29 is 3?

• 10.3%

• 26.1%

• 11.5%

• 9.8%

What is the percent change when a quantity increases from 100 to 150?

• 25%

• 50%

• 75%

• 100%

Calculate the percent change from 50 to 75.

• 25%

• 50%

• 75%

• 100%

Match the correct proportion and value for change for the following situations.

b

d

e

g

h

i

decrease $7

increase $7

decrease $5

increase $5

In a percent proportion, One ratio compares a ​ (a)   of a quantity to the ​ (b)   .

• part

• whole

• proportion

• percent

• ratio

Match the following: For Percent Proportions

• percent

• right denominator

• 100

• left

  numerator

• is

• left denominator

• of

• right numerator

When writing a percent of change proportion, you are comparing parts to wholes.

• True

• False