document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=154360>Question 154360</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am not sure how to set up the equation or how to solve this word problem.\r<BR>\n" );
document.write( "\n" );
document.write( "Elena bicycles 5km/h faster then Carlos. In the same time it takes Carlos to bicycle 39km, Elena can bicycle 54km. How fst does each bicyclist travel? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #113664 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=113664\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Elena bicycles 5km/h faster then Carlos. In the same time it takes Carlos to bicycle 39km, Elena can bicycle 54km. How fast does each bicyclist travel?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let s = C's speed<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(s+5) = E's speed<BR>\n" );
document.write( ":<BR>\n" );
document.write( "it says the times are equal: write a time equation: time = dist/speed<BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=54%2F%28s%2B5%29 ALIGN=MIDDLE  ALT=\"54%2F%28s%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=39%2Fs ALIGN=MIDDLE  ALT=\"39%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "cross multiply<BR>\n" );
document.write( "54s = 39(s+5)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "54s = 39s + 195<BR>\n" );
document.write( ":<BR>\n" );
document.write( "54s - 39s = 195<BR>\n" );
document.write( ":<BR>\n" );
document.write( "15s = 195<BR>\n" );
document.write( "s = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=195%2F15 ALIGN=MIDDLE  ALT=\"195%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "s = 13 km/hr is C's speed<BR>\n" );
document.write( "then<BR>\n" );
document.write( "13 + 5 = 18 km/hr is E's speed<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check solutions by finding the times<BR>\n" );
document.write( "54/18 = 3 hr<BR>\n" );
document.write( "39/13 = 3 hr </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );