document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=238405>Question 238405</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A pharmacist mixed some 10%-saline solution with with some 15%-saline solution to obtain 100ml of a 12%-saline  solution. How ,uch of the 10%-saline did the pharmacist use in the mixture? .10x+.15y=.12   x+y=100 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #175238 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=175238\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%2BY=100 ALIGN=MIDDLE  ALT=\"X%2BY=100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10X%2B15Y=12%28100%29 ALIGN=MIDDLE  ALT=\"10X%2B15Y=12%28100%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply eq. 1 by -10 and add to eq. 2,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-10X-10Y%2B10X%2B15Y=-1000%2B1200 ALIGN=MIDDLE  ALT=\"-10X-10Y%2B10X%2B15Y=-1000%2B1200\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5Y=200 ALIGN=MIDDLE  ALT=\"5Y=200\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Y=40 ALIGN=MIDDLE  ALT=\"Y=40\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then from eq. 1,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%2BY=100 ALIGN=MIDDLE  ALT=\"X%2BY=100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X=60 ALIGN=MIDDLE  ALT=\"X=60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "60 ml of 10% solution<BR>\n" );
document.write( "40 ml of 15% solution. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );