SOLUTION: Michael sold a total of 320 tickets at a fair. The money recived was $1255. Each adult ticket was $5 and each child ticket was $2. How many adult tickets did he sell.

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Question 747692: Michael sold a total of 320 tickets at a fair. The money recived was $1255. Each adult ticket was $5 and each child ticket was $2. How many adult tickets did he sell.
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
x + y = 320........(1)
5x + 2y = 1255.....(2)
Multiply (1) by 2
2x + 2y = 640
5x + 2y = 1255
Subtract
-3x = -615
x = 205
Substitute x =205 in (1)
205 + y = 320
y = 320 - 205
y = 115
So he sold 205 Adult tickets
and 115 Children's tickets