Posted by **Cami** on Saturday, October 23, 2010 at 3:52pm.

a=14% protein in soybean b=7% protein in cornmeal

how many pounds mixed together to get 280lb mixture that is 9% protein

a= ____lbs soybean

b= ____lbs cornmeal

Thank you from the bottom of my heart,

- Looks like SCIENCE to me! -
**Writeacher**, Saturday, October 23, 2010 at 4:39pm
Please type your __subject__ in the **School Subject** box. Any other words, __including obscure abbreviations__, are likely to delay responses from a teacher who knows that subject well.

- adult education -
**bobpursley**, Saturday, October 23, 2010 at 4:55pm
Looks like a classical algebra problem to me.

280lbs=S+C weight equation

280*.09=.14S+.07C protein equation

How to solve?

I would multiply the top equation by .07, then subtract one equation from the other.

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