SOLUTION: soy bean meal is 14% protein; corn meal is 7% of protein. How many pounds of each should be mixed together in order to make 280 pound mixture that is 13% protein?

Question 951455: soy bean meal is 14% protein; corn meal is 7% of protein. How many pounds of each should be mixed together in order to make 280 pound mixture that is 13% protein?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Let u be how much of the corn meal, in pounds.
280-u is how much of the soy bean meal.

.
Solve for the one variable, u.

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