document.write( "Question 489801: How much water must be evaporated from 32oz of a 4% solution to make a 6% salt solution? \n" ); document.write( "
Algebra.Com's Answer #333777 by chessace(471)\"\" \"About 
You can put this solution on YOUR website!
As usual, ans = x = H2O to go into thick air.
\n" ); document.write( "Salt is same quant before and after: 0.06 * (32 -x) = 0.04 * 32
\n" ); document.write( "*100, subtract righhand side:
\n" ); document.write( "6*32 -6x = 4*32
\n" ); document.write( "6x = (6-4)*32
\n" ); document.write( "x = 32/3
\n" ); document.write( "Taking away a third is exactly what you would expect: The remaining thirds have to split the extra 4% salt 2 ways, 4 + 4/2 = 6.
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