Solving Real-world Problems Involving Systems of Equations

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# Solving Real-world Problems Involving Systems of Equations - PowerPoint PPT Presentation

Solving Real-world Problems Involving Systems of Equations. Type 1: Number problems. Example: Leonard works twice as many hours at his job as Sheldon, and together they work a total of 42 hours a week. How many does each work?.

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### Solving Real-world Problems Involving Systems of Equations

Type 1: Number problems
• Example: Leonard works twice as many hours at his job as Sheldon, and together they work a total of 42 hours a week. How many does each work?

Example: Leonard works twice as many hours at his job as Sheldon, and together they work a total of 42 hours a week. How many does each work?

• ...continued
Type 2: Money Problems
• Ex. Phineas and Ferb are selling toy rockets for \$14 each and jet propelled frisbees for \$11 each. If their total profits are \$746, and they sell 58 items, how many of each did they sell?

Ex. Phineas and Ferb are selling toy rockets for \$14 each and jet propelled frisbees for \$11 each. If their total profits are \$746, and they sell 58 items, how many of each did they sell?

• ...continued
Type 3: Flat Rate Problems
• Fred and Barney operate computer repair services. For a service call, Fred charges \$40 and Barney charges \$50. In addition, they each charge hourly rates of \$35/h and \$30/h respectively. One day their charges for two service calls were the same. What did they charge, and how long did each person work?

Fred and Barney operate computer repair services. For a service call, Fred charges \$40 and Barney charges \$50. In addition, they each charge hourly rates of \$35/h and \$30/h respectively. One day their charges for two service calls were the same. What did they charge, and how long did each person work?

• ...continued