3a + 9c = 183
... 6a + 18c = 366
6a + 13c = 276
subtract equations to eliminate a
solve for c, then substitute back to find a
Set up and solve a system of equations for each problem
John and Belinda are selling pies for a school fundraiser. Customers can buy apple pies and cherry pies.
John sold 3 apple pies and 9 cherry pies for a total of $183.
Belinda sold 6 apple pies and 13 cherry pies for a total of $276. What is the cost each of one apple pies and one cherry pies?
1 answer
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