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December 18, 2014

December 18, 2014

Posted by **emily** on Friday, April 2, 2010 at 10:14am.

- math -
**PsyDAG**, Friday, April 2, 2010 at 10:45amLet x = daytime rate and y = evening rate.

20x + 12y = 280

Therefore x = (280 - 12y)/20

30x + 12y = 276

Use the same procedure as indicated in your previous post.

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