document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=818853>Question 818853</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The lab manager at a university needs to mix 10% ethanol solution with a 60% ethanol solution to obtain 50 milliliters of a 50% ethanol solution. How milliliters of the 10% solution and of the 60% solution should be mixed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492839 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=492839\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The lab manager at a university needs to mix 10% ethanol solution with a 60% ethanol solution to obtain 50 milliliters of a 50% ethanol solution. How milliliters of the 10% solution and of the 60% solution should be mixed?<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "eth + eth = eth<BR>\n" );
document.write( "0.10x + 0.60(50-x) = 0.50*50<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "10x + 60*50 - 60x = 50*50<BR>\n" );
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document.write( "-50x = -10*50<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "x = 10 ml (amt. of 10% solution to add)<BR>\n" );
document.write( "50-x = 40 ml (amt. of 60% solution needed)<BR>\n" );
document.write( "=============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=============== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );