document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1127082>Question 1127082</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Silvia wants to mix 40% apple juice drink with pure apple juice to make 4L of a juice drink that is 90% apple juice. How much pure apple juice should she use? Express answer as a mixed number or fraction in simplest terms, if necessary.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #743446 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=743446\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Here is a simple alternative to the standard algebraic method for solving mixture problems.  If you understand how to use it, you will get to the answer much faster and with far less work.<br><BR>\n" );
document.write( "Here is the whole solution process by this alternative method.<br><BR>\n" );
document.write( "(1) 90% is 5/6 of the way from 40% to 100%.  (Do some simple mental calculations: 90-40 = 50; 100-40 = 60; 50/60 = 5/6)<br><BR>\n" );
document.write( "(2) Therefore, 5/6 of the mixture must be the higher percent juice.<br><BR>\n" );
document.write( "(3) 5/6 of 4 liters is 20/6 = 10/3 liters.<br><BR>\n" );
document.write( "ANSWER: 10/3 liters of pure apple juice </SPAN>\n" );
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