Problema Solution
Soybean meal is 16% protein;cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 15% protein.
Answer provided by our tutors
Let the pounds of soybean and cornmeal needed be x and (320 - x) respectively.
So,
0.16(x) + 0.08(320 - x) = 0.15(320)
0.16x + 25.6 - 0.08x = 48
0.08x + 25.6 = 48
0.08x = 48 - 25.6
0.08x = 22.4
x = 280
So, 280 lbs of soybean is needed AND (320 - 280 = 40 Ibs) of cornmeal is needed.
Ans: 40 Ibs of cornmeal is needed.