document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=732470>Question 732470</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A girl walks 24 km at the speed of x km/hr and 40 km at the speed of y km/hr on 1st day. she walks total for 9 hrs on that day. on the next day she walks 18 km at the speed of x km/hr and 48 km at the speed of y km/hr. On that day also she walks for total 9 hrs.Find x and y? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #447863 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=447863\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Day 1:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24%2Fx%2B40%2Fy=9 ALIGN=MIDDLE  ALT=\"24%2Fx%2B40%2Fy=9\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours.<BR>\n" );
document.write( "Multiply both sides by xy.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24y%2B40x=9xy ALIGN=MIDDLE  ALT=\"24y%2B40x=9xy\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Day 2:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2Fx%2B48%2Fy=9 ALIGN=MIDDLE  ALT=\"18%2Fx%2B48%2Fy=9\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours.<BR>\n" );
document.write( "Multiply both sides by xy.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18y%2B48x=9xy ALIGN=MIDDLE  ALT=\"18y%2B48x=9xy\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Those equations might be good to use, but maybe taking the first form of those equations, and trying substitution is better or easier.  The system is not linear in x and y.\r<BR>\n" );
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document.write( "Day 1 equation, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24%2Fx%2B40%2Fy=9 ALIGN=MIDDLE  ALT=\"24%2Fx%2B40%2Fy=9\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2Fy=9-24%2Fx ALIGN=MIDDLE  ALT=\"40%2Fy=9-24%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2Fy=9x%2Fx-24%2Fx ALIGN=MIDDLE  ALT=\"40%2Fy=9x%2Fx-24%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2Fy=%289x-24%29%2Fx ALIGN=MIDDLE  ALT=\"40%2Fy=%289x-24%29%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fy=%289x-24%29%2F%2840x%29 ALIGN=MIDDLE  ALT=\"1%2Fy=%289x-24%29%2F%2840x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=%2840x%29%2F%289x-24%29%29 ALIGN=MIDDLE  ALT=\"highlight%28y=%2840x%29%2F%289x-24%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Day 2 equation,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2Fx%2B48%2Fy=9 ALIGN=MIDDLE  ALT=\"18%2Fx%2B48%2Fy=9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2Fx=9-48%2Fy ALIGN=MIDDLE  ALT=\"18%2Fx=9-48%2Fy\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2Fx=%289y-48%29%2Fy ALIGN=MIDDLE  ALT=\"18%2Fx=%289y-48%29%2Fy\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F18=y%2F%289y-48%29 ALIGN=MIDDLE  ALT=\"x%2F18=y%2F%289y-48%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=%2818y%29%2F%289y-48%29%29 ALIGN=MIDDLE  ALT=\"highlight%28x=%2818y%29%2F%289y-48%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute for y,...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%2818%2840x%2F%289x-24%29%29%29%2F%289%28%2840x%29%2F%289x-24%29%29-48%29 ALIGN=MIDDLE  ALT=\"x=%2818%2840x%2F%289x-24%29%29%29%2F%289%28%2840x%29%2F%289x-24%29%29-48%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "...so manyy steps,...<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=10x%2F%28-x%2B16%29 ALIGN=MIDDLE  ALT=\"x=10x%2F%28-x%2B16%29\"   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=x%5E2-16x%2B10x=0 ALIGN=MIDDLE  ALT=\"x%5E2-16x%2B10x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-6x=0 ALIGN=MIDDLE  ALT=\"x%5E2-6x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%28x-6%29=0 ALIGN=MIDDLE  ALT=\"x%28x-6%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%28x=0%29 ALIGN=MIDDLE  ALT=\"cross%28x=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  OR  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=6%29 ALIGN=MIDDLE  ALT=\"highlight%28x=6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You can continue onward to solve for y. </SPAN>\n" );
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