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 10% protein? How many pounds of the co

Question 329365: 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 10% protein?
How many pounds of the cornmeal should be in the mixture?
How many pounds of the soybean should be in the mixture?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
In words:
(pounds of protein in final mixture)/(pounds of final mixture) = 10%
-------------------
Let = pounds of cornmeal in final mixture
Let = pounds of soybean meal in final mixture
given:
= pounds of protein in soybean meal
= pounds of protein in corn meal
(1)
-------------------

(2)
Multiply both sides of (1) by and
subtract from (2)
(2)
(1)

And, since
(1)

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

OK

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