document.write( "Question 951455: soy bean meal is 14% protein; corn meal is 7% of protein. How many pounds of each should be mixed together in order to make 280 pound mixture that is 13% protein? \n" ); document.write( "
Algebra.Com's Answer #581090 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Let u be how much of the corn meal, in pounds.
\n" ); document.write( "280-u is how much of the soy bean meal.\r
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\n" ); document.write( "\n" ); document.write( "\"highlight_green%28%287u%2B14%28280-u%29%29%2F280=13%29\".
\n" ); document.write( "Solve for the one variable, u.\r
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\n" ); document.write( "\n" ); document.write( "\"7u%2B14%2A280-14u=13%2A280\"
\n" ); document.write( "\"-7u%2B14%2A280=13%2A280\"
\n" ); document.write( "\"7u=14%2A280-13%2A280\"
\n" ); document.write( "\"7u=280\"
\n" ); document.write( "\"highlight%28u=40%29\"
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