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January 26, 2015

January 26, 2015

Posted by **Nina** on Thursday, September 18, 2008 at 1:53pm.

- math -
**bobpursley**, Thursday, September 18, 2008 at 1:58pmNitrogen total=sum of parts

100*.21=.24*x + .12y

but x+y=100

21=.24x+.12(100-x)

solve for x first.

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