document.write( "Question 766321: Nathan needs a mixturee of 14% oats and 86% corn. He currently has 21 pounds of a mixture of 90% oats. How many pounds of corn should be added to the mixture?\r
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\n" ); document.write( "\n" ); document.write( "How much water should be added to four liters of pure alcohol to make a mixture of 40% alcohol?\r
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\n" ); document.write( "\n" ); document.write( "Jasmine wants to make 40% citric acid. If she has 1/2 liters of 0% citric acid, how many liters of 45% citric acid should she add?
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Algebra.Com's Answer #466820 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
Nathan, oats and corn:\r
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\n" ); document.write( "\n" ); document.write( "The focus is on the percent of corn.
\n" ); document.write( "The available 21 pounds of corn-oats blend is 90% oats and must therefore be assumed 10% corn. Nathan wants to increase the percent of corn by adding some c pounds of 100% corn:
\n" ); document.write( "\"%2821%2A10%2Bc%2A100%29%2F%2821%2Bc%29=14\"\r
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\n" ); document.write( "\n" ); document.write( "\"100c%2B21%2A10=14%28c%2B21%29\"
\n" ); document.write( "\"100c%2B21%2A10=14c%2B14%2A21\"
\n" ); document.write( "\"86c%2B21%2A10=21%2A14\"
\n" ); document.write( "\"86c=21%2814-10%29\"
\n" ); document.write( "\"86c=21%2A4\"
\n" ); document.write( "\"c=84%2F86\"
\n" ); document.write( "\"highlight%28c=42%2F43%29\" almost 1 full pound of corn.
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