document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=881503>Question 881503</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Bill is biking across state. It takes 23 hours to complete the 213 mile ride. For the first leg he is pedaling downhill and is averaging the speed of 12 miles an hour.  Upon reaching the second leg his speed is cut down to 3 miles an hour. How long did he spend biking downhill? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #532287 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=532287\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Bill is biking across state. It takes 23 hours to complete the 213 mile ride. For the first leg he is pedaling downhill and is averaging the speed of 12 miles an hour. Upon reaching the second leg his speed is cut down to 3 miles an hour. How long did he spend biking downhill?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=time Bill spent biking downhill on the 1st leg of the trip<BR>\n" );
document.write( "23-x=time Bill spent on 2nd leg of the trip<BR>\n" );
document.write( "distance=speed*travel time<BR>\n" );
document.write( "..<BR>\n" );
document.write( "12x+3(23-x)=213<BR>\n" );
document.write( "12x+69-3x=213<BR>\n" );
document.write( "9x=144<BR>\n" );
document.write( "x=16<BR>\n" );
document.write( "time Bill spent biking downhill=16 hrs </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );