document.write( "Question 352699: How many ounces of pure water must be added to 75 oz of a 20% salt solution to make a salt solution that is 15% salt? \n" ); document.write( "
Algebra.Com's Answer #252090 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Pure water is a 0% salt solution.
\n" ); document.write( "Let A be the amount of pure water.
\n" ); document.write( "\"0%28A%29%2B20%2875%29=15%28A%2B75%29\"
\n" ); document.write( "\"1500=15A%2B1125\"
\n" ); document.write( "\"highlight%28A=25%29\"oz.
\n" ); document.write( "
\n" ); document.write( "
\n" );