document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=751561>Question 751561</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mary is mixing up some punch for her party tomorrow. She messed up at first and ended up with two different punches, one that was too strong and one that was too weak. The first was too weak, 20 liters of an 18% punch mix and the second was too strong, 50 liters of a 30% mix. She wanted all the punch to have 25% punch mix. How can she mix what she has with water to create the proper punch? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #457278 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=457278\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Interesting you ask, how much water.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "If that is how the adjustment is to be done, then ignore the 18% punch and just use the 30% punch.\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2A30%2F%2850%2Bw%29=25 ALIGN=MIDDLE  ALT=\"50%2A30%2F%2850%2Bw%29=25\"   DISABLED_style= \"max-width:90%; height:auto;\" > where w is how much liters of water to add.  Solve for w.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25%2850%2Bw%29=1500 ALIGN=MIDDLE  ALT=\"25%2850%2Bw%29=1500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25%2A50%2B25w=1500 ALIGN=MIDDLE  ALT=\"25%2A50%2B25w=1500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25w=1500-25%2A50 ALIGN=MIDDLE  ALT=\"25w=1500-25%2A50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25w=250 ALIGN=MIDDLE  ALT=\"25w=250\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28w=10%29 ALIGN=MIDDLE  ALT=\"highlight%28w=10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters water\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Certainly there are other ways, such as to use some or (maybe) all(?) of the 18% punch along with the 30%.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "A good alternative is say, let e be how much of the 18% punch to add to the 50 liter of 30% punch.  Add no extra water.\r<BR>\n" );
document.write( "\n" );
document.write( "... in fact, you would need to add ALL of the 20 liters of the 18% plus some water.<BR>\n" );
document.write( "...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%2850%2A30%2B20%2A18%29%2F%2850%2B20%2Bw%29=25%29 ALIGN=MIDDLE  ALT=\"highlight%28%2850%2A30%2B20%2A18%29%2F%2850%2B20%2Bw%29=25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solve for w, the liters of water to add to ALL of the available punch solutions. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );