SOLUTION: Soybean meal is 16% protein; cormeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 15% protein? Cormeal______ Soybea

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Question 152160: Soybean meal is 16% protein; cormeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 15% protein?
Cormeal______
Soybean______

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let x="pounds of soy meal", so 320-x="pounds of corn meal"

(16%)(x)+(8%)(320-x)=(15%)(320) __ .16x+25.6-.08x=48

subtracting 25.6 __ .08x=22.4 __ dividing by .08 __ x=280

320-x=40