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?
Answer provided by our tutors
Let x = amt of 14% stuff
then
(280-x) = amt of 7% stuff
A simple equation:
.14x + .07(280-x) = .13(280)
.14x + 19.6 - .07x = 36.4
.14x - .07x = 36.4 - 19.6
.07x = 16.8
x =
x = 240 lb of 14% stuff
then
280 - 240 = 40 lb of 7% stuff
Check solution
.14(240) = .07(40) = .13(280)