document.write( "Question 149894: How much water must be added to a 40 liters of a 30% salt solution to produce a 25% salt solution? \n" ); document.write( "
Algebra.Com's Answer #110004 by nerdybill(7384)\"\" \"About 
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How much water must be added to a 40 liters of a 30% salt solution to produce a 25% salt solution?
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\n" ); document.write( "Let x = amount of water added
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\n" ); document.write( "Started with:
\n" ); document.write( "40 liters
\n" ); document.write( "of which .30(40) = 12 liters is salt
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\n" ); document.write( "12 = .25(40+x)
\n" ); document.write( "12 = 10 + .25x
\n" ); document.write( "2 = .25x
\n" ); document.write( "8 liters = x
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