Posted by Laura on Saturday, August 16, 2008 at 9:28am.
Soybean meal is 12% protein; cornmeal is 6% protein. howmany pounds of each should be mixed together to get a 240 pound mixture that is 8% protein?

Algebra  bobpursley, Saturday, August 16, 2008 at 9:31am
Sum of protein constituents=total protein
.12S+.06P=240*(.08)
S + P=240
Those two equations will solve it.

Algebra  bobpursley, Saturday, August 16, 2008 at 10:12am
well, if
S+P=240, then S=240P
then
.12S+.06P=240*.08 or
.12(240P) + .06P=240*.08
solve for P
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