document.write( "Question 358972: a 25 liter solution of alcohol in water is 72% alcohol. how many liters of an 80% solution must be added if the final solution is to be 75% alcohol? \n" ); document.write( "
Algebra.Com's Answer #256148 by Fombitz(32388)\"\" \"About 
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Let A be the amount of 80% solution,
\n" ); document.write( "\"72%2825%29%2B80%28A%29=75%2825%2BA%29\"
\n" ); document.write( "\"1800%2B80A=1875%2B75A\"
\n" ); document.write( "\"5A=75\"
\n" ); document.write( "\"highlight%28A=15%29\"liters
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