document.write( "Question 939057: A salt solution of 15 l contains 20% salt,how much water you must add to salt solution in order to dilute it to 15% salt? \n" ); document.write( "
Algebra.Com's Answer #572139 by stanbon(75887)\"\" \"About 
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A salt solution of 15 l contains 20% salt,how much water you must add to salt solution in order to dilute it to 15% salt?
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\n" ); document.write( "Equation:
\n" ); document.write( "water + water = water
\n" ); document.write( "0.80*15 + 1*x = 0.85(15+x)
\n" ); document.write( "80*15 + 100x = 85*15 + 85x
\n" ); document.write( "15x = 5*15
\n" ); document.write( "x = 5 liters (amt. of water to add)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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