document.write( "Question 795829: A chemist has two solutions of HCL. One has a 40% concentration and the other has a 25% concentration. \r
\n" ); document.write( "\n" ); document.write( "How many liters of each solution must be mixed to obtain 124 liters of a 35% solution?\r
\n" ); document.write( "\n" ); document.write( "___L of the 40% solution and _____ liters of the 25% solution must be mixed to obtain a 35% solution of HCL\r
\n" ); document.write( "\n" ); document.write( "(Round to the nearest tenth, if necessary) \n" ); document.write( "
Algebra.Com's Answer #481185 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A chemist has two solutions of HCL. One has a 40% concentration and the other has a 25% concentration.
\n" ); document.write( "How many liters of each solution must be mixed to obtain 124 liters of a 35% solution?
\n" ); document.write( "___L of the 40% solution and _____ liters of the 25% solution must be mixed to obtain a 35% solution of HCL
\n" ); document.write( "-------
\n" ); document.write( "Equation:
\n" ); document.write( "acid + acid = acid
\n" ); document.write( "0.40x + 0.25(124-x) = 0.35*124
\n" ); document.write( "-----
\n" ); document.write( "40x + 25*124 - 25x = 35*124
\n" ); document.write( "15x = 10*124
\n" ); document.write( "x = (2/3)124
\n" ); document.write( "x = 82 liters (amt. of 40% solution needed)
\n" ); document.write( "124-x = 42 liters (amt. of 25% solution needed)
\n" ); document.write( "==============
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "============== \n" ); document.write( "
\n" );