document.write( "Question 488313: how many pounds of water must be evaporated from 50lbs of a 3% salt solution so that the remaining solution will be a 5% salt? \n" ); document.write( "
Algebra.Com's Answer #333349 by stanbon(75887)\"\" \"About 
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how many pounds of water must be evaporated from 50lbs of a 3% salt solution so that the remaining solution will be a 5% salt?
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\n" ); document.write( "Equation:
\n" ); document.write( "water - water = water
\n" ); document.write( "0.97*50 - x = 0.95(50-x)
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\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "97*50 - 100x = 95*50-95x
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\n" ); document.write( "2*50 = 5x
\n" ); document.write( "x = 20 lbs (amt. of water to evaporate)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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