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January 31, 2015

January 31, 2015

Posted by **Vic** on Friday, January 6, 2012 at 12:49am.

- math -
**Reiny**, Friday, January 6, 2012 at 9:48amlength of class change --- x

length of each class--- y

but y = 6x - 6

3x + 2y = 120

3x + 2(6x-6) = 120

3x + 12x - 12 = 120

15x = 132

x = 8.8

y = 46.8

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