document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1196850>Question 1196850</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of a solution that is 30% alcohol must be mixed with 80 liters of a solution that is 90% alcohol to get a solution that is 60% alcohol? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #829869 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=829869\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "(1) An informal solution using common sense....<br><BR>\n" );
document.write( "The desired concentration, 60% is halfway between 30% and 90%; that means equal amounts of the two ingredients are needed.<br><BR>\n" );
document.write( "ANSWER: 80 liters<br><BR>\n" );
document.write( "(2) A typical setup for solving the problem using formal algebra....<br><BR>\n" );
document.write( "x liters of .30 alcohol, plus 80 liters of .90 alcohol, equals (80+x) liters of .60 alcohol:<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.30%28x%29%2B.90%2880%29=.60%28x%2B80%29 ALIGN=MIDDLE  ALT=\".30%28x%29%2B.90%2880%29=.60%28x%2B80%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Solve using basic algebra; I'll leave that to you.<br><BR>\n" );
document.write( "Obviously your answer should be 80 liters....<br><BR>\n" );
document.write( " </SPAN>\n" );
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