document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=512888>Question 512888</A>: <I><SPAN STYLE=\"word-break: break-all;\"> TWO PERSONS R AND S HAD TO MEET AT A PLACE 36KM FROM WHERE TEY WERE AT THAT MOMENT. S,WHO WAS GIVEN A HEAD START OF 2HOURS, REACHED THE DESTINATION 12MIN EARLIER THAN R. IF R TRAVELED 18KMPH FASTER THAN S, AT WHAT SPEED DID R TRAVEL? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #343055 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=343055\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> TWO PERSONS R AND S HAD TO MEET AT A PLACE 36KM FROM WHERE THEY WERE AT THAT MOMENT. <BR>\n" );
document.write( "S, WHO WAS GIVEN A HEAD START OF 2HOURS, REACHED THE DESTINATION 12 MIN EARLIER THAN R.<BR>\n" );
document.write( " IF R TRAVELED 18KMPH FASTER THAN S, AT WHAT SPEED DID R TRAVEL?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Change 12 min: 12/60 = .2 hrs<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let r = R's speed<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(r-18) = S's speed<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Write time equation<BR>\n" );
document.write( "r's time + .2 hrs = s's time - 2 hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%2Fr ALIGN=MIDDLE  ALT=\"36%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" > + .2 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%2F%28%28r-18%29%29 ALIGN=MIDDLE  ALT=\"36%2F%28%28r-18%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > - 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%2Fr ALIGN=MIDDLE  ALT=\"36%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%2F%28%28r-18%29%29 ALIGN=MIDDLE  ALT=\"36%2F%28%28r-18%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > - 2 -.2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%2Fr ALIGN=MIDDLE  ALT=\"36%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%2F%28%28r-18%29%29 ALIGN=MIDDLE  ALT=\"36%2F%28%28r-18%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > - 2.2<BR>\n" );
document.write( "multiply both sides by r(r-18), resulting in<BR>\n" );
document.write( "36(r-18) = 36r - 2.2r(r-18)<BR>\n" );
document.write( "36r - 648 = 36r - 2.2r^2 + 39.6r<BR>\n" );
document.write( "36r's cancel write a quadratic equation<BR>\n" );
document.write( "2.2r^2 - 39.6r - 648 = 0<BR>\n" );
document.write( "Use the quadratic formula: a=2.2, b=-39.6, c=-648<BR>\n" );
document.write( "the positive solution: r = 28.38 km/hr </SPAN>\n" );
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