algebra
posted by Louren .
soilbean meal is 18% protein, cornemeal is 9% protein ow many pounds o each should be mixed together in oder to get 360lbs. mixture that is 14 protein?
How pounds of cornmeal do you need and how many pounds of soybean do you need?

algebra 
drwls
360 lb with 14% protein is 50.4 lb protein.
Solve these two simultaneous equations for the number of lb of soybean meal (S)and corn meal (C):
S + C = 360
0.18S + 0.09C = 50.4
One way to solve would be to substitute 360C for S in the second equation.; then solve for C
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