document.write( "Question 304836: A 30-gallon solution is 80% salt. How much pure water must be added to produce a solution that is 60% salt? \n" ); document.write( "

Algebra.Com's Answer #218376 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"w\"$ = gallons of water to be added
\n" ); document.write( " $\".8%2A30+=+24\"$ gallons of salt in 80% solution
\n" ); document.write( " $\"24%2F%2830+%2B+w%29+=+.6\"$
\n" ); document.write( " $\"24+=+.6%2A%2830+%2B+w%29\"$
\n" ); document.write( " $\"24+=+18+%2B+.6w\"$
\n" ); document.write( " $\".6w+=+24+-+18\"$
\n" ); document.write( " $\".6w+=+6\"$
\n" ); document.write( " $\"w+=+10\"$
\n" ); document.write( "10 gallons of water must be added
\n" ); document.write( " \n" ); document.write( "

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