document.write( "Question 414153: how much water must be added to 300 gallons of 85% alcohol in order to reduce it to 70% alcohol? \n" ); document.write( "

Algebra.Com's Answer #290480 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"w\"$ = gallons of water to be added
\n" ); document.write( "given:
\n" ); document.write( " $\".85%2A300+=+255\"$ are gallons of alcohol in 85% mixture
\n" ); document.write( "----------------
\n" ); document.write( " $\"255%2F%28w+%2B+300%29+=+.7\"$
\n" ); document.write( " $\"255+=+.7%2A%28w+%2B+300%29\"$
\n" ); document.write( " $\"255+=+.7w+%2B+210\"$
\n" ); document.write( " $\".7w+=+45\"$
\n" ); document.write( " $\"w+=+64.286\"$ gallons
\n" ); document.write( "64.286 gallons of water must be added \n" ); document.write( "

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