document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1012742>Question 1012742</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One solution is 80% acid and another one is 30% acid.  How much of each solution is needed to make a 150L solution that is 62% acid? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #628793 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=628793\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .8x+.3(150-x)= .62(150)<BR>\n" );
document.write( ".8x+45-.3x= 93<BR>\n" );
document.write( ".5x= 48<BR>\n" );
document.write( "x= 96<BR>\n" );
document.write( "You need 96 of the 80% solution and 150-96= 54 of the 30%<BR>\n" );
document.write( "---------------------------------------------------------<BR>\n" );
document.write( "Check - let's do a weighted average to prove this:<BR>\n" );
document.write( "96/150= .64 (64% of the solution is at 80%)<BR>\n" );
document.write( "54/150= .36 (36% of the solution is at 30%) <BR>\n" );
document.write( "(.64*.8)+(.36*.3)= .62 <BR>\n" );
document.write( ".62= .62 We have the correct answer<BR>\n" );
document.write( "J<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );