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Percents and Equations

Section 6.7. Percents and Equations. Learning Targets. I can write and solve percent equations. I can use equations in solving percent problems. Review. What Proportion do we use to solve a percent problem?. Equations.

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Percents and Equations

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  1. Section 6.7

    Percents and Equations

  2. Learning Targets I can write and solve percent equations. I can use equations in solving percent problems.
  3. Review What Proportion do we use to solve a percent problem?
  4. Equations Instead of using a proportion, some people find it easier to use an equation. Whole (of) * Percent(Decimal) = Part (is)
  5. Example What is 85% of 62? What percent of 48 is 54?
  6. Rule
  7. Practice What is 145.5% of 20? 380 is 125% of what number?
  8. Commission What is commission? Some sales jobs pay an amount based on how much you sell. This amount is called a commission.
  9. Example A real-estate agent makes a 4.5% commission on property she sells. How much commission does she make on the sale of a house for $132,500?
  10. Practice A singer receives a 5% royalty on each CD sale. To the nearest cent, find his royalty for a CD that sells for $16.99.
  11. Practice In a survey, 922 people, or about 68.6%, preferred smooth peanut butter to chunky. How many people were surveyed?
  12. In-Class Practice
  13. Homework Practice 6.7 WB
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