document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=18707>Question 18707</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me out with this one.  I went thru the other questions and didn't see this type of question.  Thanks\r<BR>\n" );
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document.write( "Joe traveled 290 miles east of St. Louis.  For most of the trip he averaged 70mph, but for one period of time he was slowed to 20mph due to a major accident.  If the total time of travel was 7 hours, how many miles did he drive at the reduced speed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #8986 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=8986\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Joe traveled 290 miles east of St. Louis.  For most of the trip he averaged 70mph, but for one period of time he was slowed to 20mph due to a major accident.  If the total time of travel was 7 hours, how many miles did he drive at the reduced speed?<BR>\n" );
document.write( "let the duration of travel at reduced speed of 20 mph  be =x hrs<BR>\n" );
document.write( "total duration of travel =7 hrs.<BR>\n" );
document.write( "so duration of travel at normal speed of 70 mph =7-x hrs<BR>\n" );
document.write( "distance = speed *time <BR>\n" );
document.write( "distance travelled at reduced speed =20*x=20x<BR>\n" );
document.write( "distance travelled at normal speed =70*(7-x)=70*7-70*x=490-70x<BR>\n" );
document.write( "total distance travelled=20x+490-70x=290<BR>\n" );
document.write( "490-290=70x-20x<BR>\n" );
document.write( "200=50x<BR>\n" );
document.write( "x=200/50=4 hrs.<BR>\n" );
document.write( "so distance travelled at reduced speed =4*20 =80 miles<BR>\n" );
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