document.write( "Question 865580: I have 200 gallons of 89 proof alchol. How much h2o should I add to get it to 80 proof! \n" ); document.write( "
Algebra.Com's Answer #521758 by richwmiller(17219)\"\" \"About 
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89 proof is 89/2%=.445
\n" ); document.write( ".445*200=.40*(200+x)
\n" ); document.write( "x = 22.5 gallons of water.\r
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