SOLUTION: A fertilizer mixture containing 30% nitrogen is desired for a certain crop. The farmer has a fertilizer with 17% nitrogen content and another fertilizer with 43% nitrogen content.

Question 169881: A fertilizer mixture containing 30% nitrogen is desired for a certain crop. The farmer has a fertilizer with 17% nitrogen content and another fertilizer with 43% nitrogen content. How much of each fertilizer is needed to make 100kg of fertilizer with the desired nitrogen content ?
please give me the table of your solution
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
.43x+.17(100-x)=.3*100
.43x+17-.17x=30
.26x=30-17
.26x=13
x=13/.26
x=50 kg of 43% fertilizer is used.
100=50=50 kg of 17% fertilizer is also used.
Proof:
.43*50+.17*50=30
21.5+8.5=30
30=30

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