Solving Linear Systems using Multiplication Chapter Seven.

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Presentation transcript:

Solving Linear Systems using Multiplication Chapter Seven

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?

Nancy is training for her commercial pilot’s 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?

Multiplication Method 2 x + 3 y = -2 2 x - 3 y = -16

Multiplication Method 2 x + 5 y = 13 9 x + 4 y = 3

Multiplication Method 2 x + y = 4 -4 x - 2 y = -8

Multiplication Method 3 x + 4 y = 11 4 x - 3 y = 23

Multiplication Method 21 x - 15 y = 6 7 x - 5 y = 3

Homework