The Percent Equation

PERCENT EQUATION

Solving problems that include percentages

​Part = (Percent)(whole)

Advantage: easy to use with SHORT sentence problems

Drawback: have to convert between percent and decimals

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​Advantages and Drawbacks of the percent equation

​Is means equal

​Key words

​Of means multiply

​56

​Now solve the one step equation

​56 is what percent of 95

​=

​x

​*

​95

Fill in the Blanks

27 is what percent of 138?

(round to nearest whole percent)

Fill in the Blanks

What percent of 21 is 28

(round to the nearest whole number)

0.35

​Now solve the equation

35% of 6 is what number

​=

​x

​*

6

Fill in the Blanks

12.5% of 35 is what number

(round to nearest tenth)

Fill in the Blanks

What number is 30% of 12?

(round to nearest tenth)

​18

​Now solve the one step equation

​18 is 25% of what number

​=

​x

​*

0.25

Fill in the Blanks

22 is 31% of what number?

(round to the nearest whole number)

Fill in the Blanks

36% of what number is 92.8?

(round to the nearest tenth)

Fill in the Blanks

What number is 23% of 20?

(nearest tenth)

Fill in the Blanks

18 is 21% of what number

(round to the nearest tenth)

Fill in the Blanks

Tanya earned a 75% on her test. If she got 45 questions correct, how many questions were on the test?