document.write( "Question 10912: This word problem has me stumped. Can you help?
\n" ); document.write( "How much water must be evaporated from 240 gallons of a 3% salt solution to
\n" ); document.write( "produce a 5% salt solution?
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Algebra.Com's Answer #5734 by rapaljer(4671)\"\" \"About 
You can put this solution on YOUR website!
Let x= number of gallons to be evaporated (removed) from the solution.\r
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\n" ); document.write( "\n" ); document.write( "240 = no of gallons to begin with at 3%
\n" ); document.write( "-x = no of gallons to evaporate at 0%
\n" ); document.write( "240-x = no of gallons to end up with at 5%\r
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\n" ); document.write( "\n" ); document.write( "Equation:
\n" ); document.write( ".03(240) - 0(x) = .05(240-x)
\n" ); document.write( "7.2 = 12 - .05x
\n" ); document.write( "7.2 - 12 = 12- 12 - .05x\r
\n" ); document.write( "\n" ); document.write( "-4.8 = -.05x\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%28-4.8%29%2F%28-.05%29+=+96\" gallons
\n" ); document.write( "Leaving behind 240-96 = 144 gallons\r
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\n" ); document.write( "\n" ); document.write( "Check:
\n" ); document.write( "\"+240+%2A+.03+=+144%2A.05\"
\n" ); document.write( "\"7.2+=+7.2\"\r
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\n" ); document.write( "\n" ); document.write( "R^2 at SCC\r
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