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January 28, 2015

January 28, 2015

Posted by **rafael** on Tuesday, November 15, 2011 at 9:18am.

- math -
**Lee**, Wednesday, November 16, 2011 at 12:37amMary is 14 and Peter is 23

To figure out Peter's age:

x=Peter's age

2/3(x-2)= 1/2(x+5) solve for x

2/3x - 4/3 = 1/2x + 5/2

2/3x-1/2x = 5/2+4/3

4/6x-3/6x=15/6+8/6

1/6x=23/6

X=23/6 / 1/6

X=23

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