Question

Livestock feed. Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350-lb mixture that is 12% protein?

Answer 1

soybean: 150 lbs
cornmeal: 200 lbs

Answer 2

S+C=350
0.16*S+0.09*C=0.12*350=42
C=350-S
0.16S+(0.09(350-S))=42
0.07S+31.5=42
0.07S=10.5
S=10.5/0.07=150lbs
C=350-150=200lbs

Answer 3

ok thats the answer i came up with i wasn't sure thank you