Solving Linear Systems using Multiplication

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Solving Linear Systems using Multiplication

• Chapter Seven

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• The perimeter of a rectangle is 54 centimeters.
  Two times the altitude is 3 centimeters more than
  the base. What is the area of the rectangle?

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• Nancy is training for her commercial pilots
  license. She can afford to spend only 3500 on
  the required 50 hours of instruction. Nancy
  would like to spend as much time as possible
  training in an airplane, but airplane instruction
  costs 98 per hour. Training in the simulator
  costs only 46 per hour.
• How many hours should Nancy spend in an airplane
  and how many should she spend in the simulator?

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Multiplication Method

• 2x 3y -2 2x - 3y -16

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Multiplication Method

• 2x 5y 13 9x 4y 3

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Multiplication Method

• 2x y 4-4x - 2y -8

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Multiplication Method

• 3x 4y 11 4x - 3y 23

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Multiplication Method

• 21x - 15y 6 7x - 5y 3

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Homework