document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=817404>Question 817404</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Pure acid is to be added to a 10% acid solution to obtain 90L on 20% solution. What amounts of each should be used? <BR>\n" );
document.write( "How many liters of 100% pur acid should be used? <BR>\n" );
document.write( "H0w many liters of the 10% soultion should be in the mixture?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492043 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=492043\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let u = liters of the 10% acid.<BR>\n" );
document.write( "Let v = liters of the 100% acid.\r<BR>\n" );
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document.write( "You did not say if the percents are as v/v or as w/v, so this solution guidance assumes v/v.\r<BR>\n" );
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document.write( "Amount of acid =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10u%2B100v ALIGN=MIDDLE  ALT=\"10u%2B100v\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and represents 100 times the actual amount of acid, because the percents are used;\r<BR>\n" );
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document.write( "Amount of resulting solution is 90 liters.<BR>\n" );
document.write( "You wanted 20% acid as a result:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2810v%2B100v%29%2F90=20 ALIGN=MIDDLE  ALT=\"%2810v%2B100v%29%2F90=20\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u%2Bv=90 ALIGN=MIDDLE  ALT=\"u%2Bv=90\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solve the system. </SPAN>\n" );
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