document.write( "Question 452936: a 10% and a 20% salt solution are combined to make 12 gallons of 15% salt solution. How much of each strength solution is required?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #311238 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
percent ----------------quantity
\n" ); document.write( "salt solution I 10---------------x lb
\n" ); document.write( "salt solution II20---------------12-x lb
\n" ); document.write( "Total 15.00% ---------------- 12
\n" ); document.write( "
\n" ); document.write( "10x+20(12-x)=15 *12
\n" ); document.write( "10x+240-20x=180
\n" ); document.write( "10x-20x=180-240
\n" ); document.write( "-10x=-60
\n" ); document.write( "/-10
\n" ); document.write( "x=6lb ---10.00%
\n" ); document.write( "6lb---- 20.00%
\n" ); document.write( "
\n" ); document.write( "
\n" );