document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=703164>Question 703164</A>: <I><SPAN STYLE=\"word-break: break-all;\"> eric drove from town A to town B. after travelling 1/3 of the journey at an average speed of 75 km/hr, he continued to travel another 300 km to reach town b, if the average speed for the whole journey was 90 km/hr, find his average speed for the last 2/3 of the journey? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #433413 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=433413\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Eric drove from town A to town B.<BR>\n" );
document.write( " After traveling 1/3 of the journey at an average speed of 75 km/hr, he continued to travel another 300 km to reach town b.<BR>\n" );
document.write( " If the average speed for the whole journey was 90 km/hr, find his average speed for the last 2/3 of the journey?<BR>\n" );
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document.write( "From the given information, 2/3 = 300 km, therefore 1/3 = 150 km<BR>\n" );
document.write( "Total distance = 450 km<BR>\n" );
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document.write( "Write a time equation, time = dist/speed<BR>\n" );
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document.write( "let s = the average speed for 2/3 of the journey<BR>\n" );
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document.write( ":1/3 time + 2/3 time = total time<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150%2F75 ALIGN=MIDDLE  ALT=\"150%2F75\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300%2Fs ALIGN=MIDDLE  ALT=\"300%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=450%2F90 ALIGN=MIDDLE  ALT=\"450%2F90\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "reduce the fractions<BR>\n" );
document.write( "2 + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300%2Fs ALIGN=MIDDLE  ALT=\"300%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 5<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300%2Fs ALIGN=MIDDLE  ALT=\"300%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 5 - 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300%2Fs ALIGN=MIDDLE  ALT=\"300%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 3<BR>\n" );
document.write( "3s = 300<BR>\n" );
document.write( "s = 100 km/hr for 2/3 the journey<BR>\n" );
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document.write( "Check this using the time equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150%2F75 ALIGN=MIDDLE  ALT=\"150%2F75\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300%2F100 ALIGN=MIDDLE  ALT=\"300%2F100\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=450%2F90 ALIGN=MIDDLE  ALT=\"450%2F90\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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