document.write( "Question 321728: A 280 mL solution is 20% salt. How much water should be added to make the solution 14% salt? \n" ); document.write( "

Algebra.Com's Answer #230359 by Fombitz(32388) $\"\"$ $\"About$

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Let A be the number of milliliters of 0% salt solution (pure water) added.
\n" ); document.write( " $\"20%28280%29%2B0%28A%29=14%28280%2BA%29\"$
\n" ); document.write( " $\"5600=3920%2B14A\"$
\n" ); document.write( " $\"14A=1680\"$
\n" ); document.write( " $\"highlight%28A=120%29\"$
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\n" ); document.write( "Add 120 ml of pure water. \n" ); document.write( "

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