document.write( "Question 431443: how much water should be mixed with 6 gallons of 30% alcohol to get a 20% alcohol solution \n" ); document.write( "
Algebra.Com's Answer #307635 by jorel1380(3719)\"\" \"About 
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6 gallons of 30% alcohol=1.8 gallons of pur alcohol--
\n" ); document.write( ".20*x gallons=1.8
\n" ); document.write( "x=1.8/.2=9 gallons
\n" ); document.write( "Since you already have 6 gallons, you need 3 gallons of pure water to thin the mix down to 20%..
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