SOLUTION: Soybean meal is 14% protein; cornmeal is 7% protein. How many lbs of each should be mixed together in order to get 280-lb mixture that is 10% protein? How many pounds of the corn

Question 150550: Soybean meal is 14% protein; cornmeal is 7% protein. How many lbs of each should be mixed together in order to
get 280-lb mixture that is 10% protein?
How many pounds of the cornmeal should be in the mixture?
How many pounds of soybean should be in the mixture?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = lbs of soybean meal to be used
Let = lbs of cornmeal to be used
Protein in the soybean meal =
Protein in the cornmeal =
In words:
(total lbs of protein in mixture) / (lbs of mixture) = % protein

multiply both sides by
(1)
Also known is
Multiply both sides by
(2)
Subtract (1) from (2)

lbs
And since

lbs
160 lbs of cornmeal are needed and 120 lbs of soybean meal are needed
check:

OK
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