document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=99387>Question 99387</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could someone please help me. So far I am doing well on my assignment with what I have learned from all of your help, it is these word problems that are tripping me up.\r<BR>\n" );
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document.write( "Lee can ride his bicycle 50 mi in the same time it takes him to drive 125 mi.  If his driving rate is 30 mi/h faster than his rate bicycling, find each rate<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #72328 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=72328\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Lee can ride his bicycle 50 mi in the same time it takes him to drive 125 mi. If his driving rate is 30 mi/h faster than his rate bicycling, find each rate<BR>\n" );
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document.write( "Recognize the fact that the bicycle trip time = the car trip time<BR>\n" );
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document.write( "Let s = speed of the bicycle<BR>\n" );
document.write( "Then<BR>\n" );
document.write( "(s+30) = speed of the car<BR>\n" );
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document.write( "Write a time equation: Time = dist/speed<BR>\n" );
document.write( " Bike time = Car time<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2Fs ALIGN=MIDDLE  ALT=\"50%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=125%2F%28%28s%2B30%29%29 ALIGN=MIDDLE  ALT=\"125%2F%28%28s%2B30%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Cross multiply<BR>\n" );
document.write( "125s = 50(s+30)<BR>\n" );
document.write( "125s = 50s + 1500<BR>\n" );
document.write( "125s - 50s = 1500<BR>\n" );
document.write( "75s = 1500<BR>\n" );
document.write( "s = 1500/75<BR>\n" );
document.write( "s = 20 mph is speed of the bicycle<BR>\n" );
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document.write( "20 + 30 = 50 mph is car's speed<BR>\n" );
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document.write( "Check solution by finding the time:<BR>\n" );
document.write( "50/20 = 2.5 hrs<BR>\n" );
document.write( "125/50 = 2.5 hrs, also<BR>\n" );
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