Asked by Nina
I'm not sure of how to solve word problems. The question is,"One lawn fertilizer is 24% nitrogen and another is 12% nitrogen. How much of fertilizer should be mixed to obtain 100 kg of fertilizer that is 21% nitrogen?"
Answers
Answered by
bobpursley
Nitrogen total=sum of parts
100*.21=.24*x + .12y
but x+y=100
21=.24x+.12(100-x)
solve for x first.
100*.21=.24*x + .12y
but x+y=100
21=.24x+.12(100-x)
solve for x first.
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