document.write( "Question 430606: This is not a financial question however, it deals with percentages. So I presume this is the best board to post to. I apologize in advance if it is not.\r
\n" ); document.write( "\n" ); document.write( "Soybean meal is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb mixture that is 8% protein?\r
\n" ); document.write( "\n" ); document.write( "How many pounds of cornmeal should be in the mixture?
\n" ); document.write( "___ pounds\r
\n" ); document.write( "\n" ); document.write( "How many pounds of soybean meal should be in the mixture?
\n" ); document.write( "___ pounds\r
\n" ); document.write( "\n" ); document.write( "I dont understand this at all. The protein percentages do not have a value for how many pounds (of each) it takes to come up with the 12% and 6%
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Algebra.Com's Answer #299024 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Soybean meal is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb mixture that is 8% protein?
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\n" ); document.write( "Using 2 variables.
\n" ); document.write( "Equation:
\n" ); document.write( "Quantity: s + c = 240
\n" ); document.write( "Protein:0.12s+0.06c = 0.08*240
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\n" ); document.write( "Multiply thru 1st by 12
\n" ); document.write( "Multiply thru 2nd by 100
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\n" ); document.write( "12s + 12c = 12*240
\n" ); document.write( "12s + 6c = 8*240
\n" ); document.write( "-----------------
\n" ); document.write( "Subtract and solve for \"c\":
\n" ); document.write( "6c = 4*240
\n" ); document.write( "c = (2/3)(240)
\n" ); document.write( "c = 160 lb (amt. of cornmeal needed)
\n" ); document.write( "---
\n" ); document.write( "Solve for \"s\":
\n" ); document.write( "s+c = 240
\n" ); document.write( "s+160 = 240
\n" ); document.write( "s = 80 lb (amt of soybean needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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\n" ); document.write( "How many pounds of cornmeal should be in the mixture?
\n" ); document.write( "___ pounds
\n" ); document.write( "How many pounds of soybean meal should be in the mixture?
\n" ); document.write( "___ pounds
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