document.write( "Question 1054509: A vat contains 250 L of a saline solution with 15% salt. How much water must be allowed to evaporate to raise the concentration of salt up to 32%?
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Algebra.Com's Answer #669719 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+.15%2A250+=+37.5+\"$ liters of salt in 15% solution
\n" ); document.write( "Let $\"+x+\"$ = liters of water to be removed by evaporation
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\n" ); document.write( " $\"+37.5+%2F+%28+250+-+x+%29+=+.32+\"$
\n" ); document.write( " $\"+37.5+=+.32%2A%28+250+-+x+%29+\"$
\n" ); document.write( " $\"+37.5+=+80+-+.32x+\"$
\n" ); document.write( " $\"+.32x+=+80+-+37.5+\"$
\n" ); document.write( " $\"+.32x+=+42.5+\"$
\n" ); document.write( " $\"+x+=+132.8125+\"$
\n" ); document.write( "132.8125 liters of water must be evaporated
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\n" ); document.write( "check:
\n" ); document.write( " $\"+37.5+%2F+%28+250+-+x+%29+=+.32+\"$
\n" ); document.write( " $\"+37.5+%2F+%28+250+-+132.8125+%29+=+.32+\"$
\n" ); document.write( " $\"+37.5+%2F+117.1875+=+.32+\"$
\n" ); document.write( " $\"+37.5+=+37.5+\"$
\n" ); document.write( "OK \n" ); document.write( "

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