Question

soybean meal is 12% protein; cornmeal is 6% protein. How many lbs of each should be mixed together in order to get a 240 lb mixture that is 7% protein?

How many lbs of cornmeal?

how many lbs of soybean?

Answer 1

thank you!

Answer 2

waittttt.

Answer 3

those are inn answers.

Answer 4

inccrt.

Answer 5

ok.

Answer 6

Let s be the number of pounds of soybean meal and c be the number of pounds of cornmeal. Make a system of equations.

s + c = 240
0.12s + 0.06c = 0.07(240) or 16.8

Solve by substitution.

s + c = 240
s = 240 - c

0.12s + 0.06c = 16.8 (substitute 240 - c for s)
0.12(240 - c) + 0.06c = 16.8
28.8 - 0.12c + 0.06c = 16.8
28.8 - 0.06c = 16.8
-0.06c = -12
c = 200

s = 240 - c = 240 - 200 = 40

ANSWER: 200 pounds of cornmeal and 40 pounds of soybean meal

Answer 7

here u go!

Answer 8

thank you!

Answer 9

You Welcome!

Answer 10

you have been a life saver!

Answer 11

hehe, Thnks! :)

Answer 12

I am about to submit my assignment...I will let you know how i did in a couple minutes