Math
posted by Carlos
soybean meal is 12% protein; cornmeal is 6% protein.How many pounds of each should be mixed together in order to get 240lb mixture that is 10% protein%
How many pounds of the cornmeal should be in the mixture?_____pounds
How many pounds of the soybeans meals should be in the mixture?______pounds

drwls
Let the number of pounds of corn meal be x and the number of pounds of soybean meal be y.
x + y = 240, for obvious reasons.
(0.06 x + 0.12 y)/240 = 0.1 (the fracttion that is protein)
Solve those two equations for x and y, using algdebra.
The sccond equation can be rewritten as
0.06x + 0.12y = 24, or
x + 2y = 400
Take it from there
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