document.write( "Question 976378: a dairy man wants to mix a 35% protein supplement and a standard 15% protein ration to make 1800 pounds of a high-grade 20% protein ration. How many pound of each should he use?
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Algebra.Com's Answer #597975 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
This could be done using just ONE variable, but here is a lesson using two unknown variables.\r
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\n" ); document.write( "\n" ); document.write( "Lesson: Two Part Mixture, both quantities unknown
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