SOLUTION: Can you please help me solve this story problem. Soybean meal is 16% protein. Cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320 pounds

Question 331143: Can you please help me solve this story problem.
Soybean meal is 16% protein. Cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320 pounds mixture that is 12% protein?
How many pounds of cornmeal should be in the mixture?
How many pounds of the soybean meal should be in the mixture?
Thanks for your help :O)
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Soybean meal is 16% protein. let this be x
Cornmeal is 8% protein. this will be 320-x
320 pounds mixture that is 12% protein?
..
0.16x+0.08(320-x)=320*.12
0.16x+25.6-0.08x=38.4
0.08x=38.4-25.6
0.08x=12.8
x=12.8/0.08
x=160 pounds soyabean
corn will be 160 pounds

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