Problema Solution

Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280 lb mixture that is 13% protein? How many pounds of the soybean meal should be in the mixture?

Answer provided by our tutors

let


s = lbs of soybean


c = lbs of cornmeal


s + c = 280


0.14s + 0.07c = 0.13*280


by solving the above system of equations we find:


s = 240 lbs


c = 40 lbs


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240 pounds of soybean and 40 pounds of cornmeal should be used for the mixture.