# Algebra

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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 -

Sum of protein constituents=total protein
.12S+.06P=240*(.08)
S + P=240

Those two equations will solve it.

• Algebra -

I don't understand the equations I am having a lot of trouble.

• Algebra -

well, if
S+P=240, then S=240-P

then

.12S+.06P=240*.08 or
.12(240-P) + .06P=240*.08
solve for P

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