Question: 4. Solve using elimination. (6) Answer 10 xy 4 x + 2y = 13 x -y =8 y - 2X = -4 y + 3x

4. Solve using elimination. (6) Answer 10 xy 4 x + 2y = 13 x -y =8 y - 2X = -4 y + 3x = 16 5. Solve the following systems using either the method of elimination or substitution. a. x - 2y = 4 2x - 4y = 12 Answer: (2) b. 3x+ y = 5 9x + 3y = 15 Answer: (2) 6. In January, the average high temperature for Calgary is 9.9"C greater than Winnipeg's average high temperature. The sum of these two temperatures is - 15.5 C. What is the average high temperature in January for each of these two cities? (4) Answer: Equation 1: Equation 2: Calgary's high: Winnipeg's high

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