document.write( "Question 574952: How much water must be evaporated from 17 qt of a 55% antifreeze solution to produce a 85% solution? \n" ); document.write( "

Algebra.Com's Answer #369336 by josmiceli(19441) $\"\"$ $\"About$

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$\"+.55%2A17+=+9.35+\"$ quarts of antifreeze in 55% solution
\n" ); document.write( " $\"+17+-+9.35+=+7.65+\"$ quarts of water in 55% solution
\n" ); document.write( "Let $\"+x+\"$ = quarts of water to be evaporated
\n" ); document.write( "given:
\n" ); document.write( " $\"+9.35+%2F+%28+17+-+x+%29++=+.85+\"$
\n" ); document.write( " $\"+9.35+=+.85%2A%28+17+-+x+%29+\"$
\n" ); document.write( " $\"+9.35+=+14.45+-+.85x+\"$
\n" ); document.write( " $\"+.85x+=+14.45+-+9.35+\"$
\n" ); document.write( " $\"+.85x+=+5.1+\"$
\n" ); document.write( " $\"+x+=+5.1%2F.85+\"$
\n" ); document.write( " $\"+x+=+6+\"$
\n" ); document.write( "6 quarts of water should be evaporated
\n" ); document.write( "check:
\n" ); document.write( " $\"+7.65+-+6+=+1.65+\"$ quarts of water left
\n" ); document.write( " $\"+1+-+.85+=+.15+\"$
\n" ); document.write( " $\"+1.65+%2F+%28+17+-+6+%29+=+1.65%2F11+\"$
\n" ); document.write( " $\"+1.65%2F11+=+.15+\"$
\n" ); document.write( "The water left is 15% of the solution
\n" ); document.write( "OK \n" ); document.write( "

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