document.write( "Question 225941: How many gal. of a 65% saline solution
\n" ); document.write( "must be mixed with 8 gal. of pure water to
\n" ); document.write( "make a 25% solution?
\n" ); document.write( "

Algebra.Com's Answer #168390 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
How many gal. of a 65% saline solution must be mixed with 8 gal. of pure water to make a 25% solution?
\n" ); document.write( ".
\n" ); document.write( "Let x = gallons of 65% saline solution added
\n" ); document.write( "then
\n" ); document.write( ".65x = .25(8+x)
\n" ); document.write( ".65x = 2+.25x
\n" ); document.write( ".4x = 2
\n" ); document.write( "x = 2/.4
\n" ); document.write( "x = 5 gallons
\n" ); document.write( "
\n" );