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November 27, 2014

November 27, 2014

Posted by **cody** on Wednesday, March 16, 2011 at 11:23am.

- algebra -
**PsyDAG**, Wednesday, March 16, 2011 at 11:56amLet x = cost of pencils and y = cost of markers.

12x + 7y = 5.36

8x + 5y = 3.68

Multiply second equation by 1.5.

12x + 7.5y = 5.52

Subtract first equation from modified second equation.

.5y = .16

y = .32

Insert value of y into either equation to find x. Then put both values in the other equation to check your answers.

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