document.write( "Question 781982: what quantity of 80% acid solution must be mixed with a 20% solution to produce 840mL of a 50% solution? \n" ); document.write( "
Algebra.Com's Answer #476192 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
what quantity of 80% acid solution must be mixed with a 20% solution to produce 840mL of a 50% solution?
\n" ); document.write( "--------------
\n" ); document.write( "50 is the average of 80 & 20, so it's equal parts.
\n" ); document.write( "
\n" ); document.write( "
\n" );