SOLUTION: If soybean meal is 12% and cornmeal is 6% protein. How many pounds would you need to have a 240 lb mixture that is 9% protein.

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Question 348443: If soybean meal is 12% and cornmeal is 6% protein. How many pounds would you need to have a 240 lb mixture that is 9% protein.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
.12x+.06(240-x)=.09*240
.12x+14.4-.06x=21.6
.06x==21.6-14.4
.06x=7.2
x=7.2/.06
x=120 pounds of 12%soybeans is used.
240-120=120 pounds of 6% cornmeal is used.
Proof:
.12*120+.06*120=.09*240
14.4+7.2=21.6
21.6=21.6