Coach Johnson knows that this system of equations represents the number of tickets sold before the tournament, x, and at the door, y. x + y = 743x – y = 75An assistant told him that 409 tickets were sold at the door and 334 tickets were sold before the tournament. Is this solution correct? Explain.
Answer
Answer:
No, the assistant’s solution is incorrect. The solution (334, 409) satisfies the first equation, but not the second. The assistant mixed up the numbers. The solution should be (409, 334)