document.write( "Question 13714: What is the strength of a salt solution that contains 12 gallons of salt and 18 gallons of pure water?\r
\n" ); document.write( "\n" ); document.write( "gal. salt gal water
\n" ); document.write( " 12 18
\n" ); document.write( "

Algebra.Com's Answer #6932 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
before:
\n" ); document.write( "18*0.00 (no salt in pure water)
\n" ); document.write( "12*1.00 (100% of salt)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "after:
\n" ); document.write( "30*x\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "so, 0 + 12 = 30x
\n" ); document.write( "--> x = 12/30
\n" ); document.write( "x = 0.40\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "so 40% salt solution.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "jon.
\n" ); document.write( "
\n" ); document.write( "
\n" );