document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1199752>Question 1199752</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many mL's of a 10% alcohol solution and how many mL's of a 20% solution must be mixed to obtain 30 mL's of a 16% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #833727 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=833727\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "If a formal mathematical solution is required, then something like the setup shown by the other tutor is standard.<br><BR>\n" );
document.write( "If formal math is not required, and if the speed of finding the answer is important, here is a quick and easy way to solve any 2-part mixture problem like this:<br><BR>\n" );
document.write( "16% is 6/10 = 3/5 of the way from 10% to 20%;<BR>\n" );
document.write( "therefore 3/5 of the mixture should be the ingredient with the higher percentage.<br><BR>\n" );
document.write( "ANSWER: 3/5 of 30mL, or 18mL, of the 20% solution; the other 12mL of the 10% solution<br><BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( ".20(12)+.30(18) = 3.6+5.4 = 9.0<BR>\n" );
document.write( ".30(30) = 9.0<br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );