document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=230075>Question 230075</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of a 20% alcohol solution must be miced with 50 liters of a 70% solution to get a 50 % solution?\r<BR>\n" );
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document.write( "I can solve this just by using the equation of .20x + 35 = .50(50+x)\r<BR>\n" );
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document.write( "But this has to be done in a system of equations. I am stumped on how to get the 2nd equation. There is no usual x+y = a certain total amount here.\r<BR>\n" );
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document.write( "Not looking for the answer but just the 2nd. equation\r<BR>\n" );
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document.write( "Thanks in advance :0) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #170449 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=170449\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> All I can figure is that they want you to say<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%2B+y ALIGN=MIDDLE  ALT=\"x+%2B+y\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters is the total liters of solution<BR>\n" );
document.write( "and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+50 ALIGN=MIDDLE  ALT=\"y+=+50\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the other equation (very trivial)<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > = liters of 20% alcohol solution needed<BR>\n" );
document.write( "In words:<BR>\n" );
document.write( "(final liters of alcohol)/(final total solution) = 50%<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "Alcohol in 70% solution:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.7%2A50+=+35 ALIGN=MIDDLE  ALT=\".7%2A50+=+35\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28.2x+%2B+35%29%2F%28x+%2B+y%29+=+.5 ALIGN=MIDDLE  ALT=\"%28.2x+%2B+35%29%2F%28x+%2B+y%29+=+.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.2x+%2B+35+=+.5%2A%28x+%2B+y%29 ALIGN=MIDDLE  ALT=\".2x+%2B+35+=+.5%2A%28x+%2B+y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.2x+%2B+35+=+.5x+%2B+.5y ALIGN=MIDDLE  ALT=\".2x+%2B+35+=+.5x+%2B+.5y\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.3x+%2B+.5y+=+35 ALIGN=MIDDLE  ALT=\".3x+%2B+.5y+=+35\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+50 ALIGN=MIDDLE  ALT=\"y+=+50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );