document.write( "Question 636030: I need to make a solution of 20% alcohol. I have on hand 98% alcohol. What is the ratio of 98% alcohol and sterile water to make 20% alcohol? \n" ); document.write( "
Algebra.Com's Answer #400735 by ankor@dixie-net.com(22740)\"\" \"About 
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make a solution of 20% alcohol. I have on hand 98% alcohol.
\n" ); document.write( "What is the ratio of 98% alcohol and sterile water to make 20% alcohol?
\n" ); document.write( ":
\n" ); document.write( "Decide how much of the 20% solution you require, let's say 10 liters
\n" ); document.write( "Let w = amt of water required
\n" ); document.write( "then
\n" ); document.write( "(10-w) = amt of 98% alcohol required
\n" ); document.write( ":
\n" ); document.write( ".98(10-w) = .20w
\n" ); document.write( "9.8 - .98w = .20w
\n" ); document.write( "9.8 = .20w + .98w
\n" ); document.write( "9.8 = 1.18w
\n" ); document.write( "w = 9.8/1.18
\n" ); document.write( "w ~ 8.3 liters of water
\n" ); document.write( "and
\n" ); document.write( "10 - 8.3 = 1.7 liters of the 98% solution
\n" ); document.write( ":
\n" ); document.write( "if you need a ratio; water: 98% alcohol: \"8.3%2F1.7\" \n" ); document.write( "
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