document.write( "Question 798931: how many liters of a 40% solution must be mixed with 40 liters of a 90% solution to get a 50% solution \n" ); document.write( "
Algebra.Com's Answer #482426 by Finavon(81)\"\" \"About 
You can put this solution on YOUR website!
x of 40% 40x
\n" ); document.write( "40 of 90% 3600
\n" ); document.write( "40+x of 50% (40+x)*50\r
\n" ); document.write( "\n" ); document.write( "40x+3600=2000+50x
\n" ); document.write( "x=160L\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );