document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=293799>Question 293799</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You are to travel from point A to point B and return. On the trip from A to B, you travel at thirty miles per hour. How fast would you have to travel from B to A in order to average sixty miles per hour for the round trip? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #212116 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=212116\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are to travel from point A to point B and return. On the trip from A to B, you travel at thirty miles per hour. How fast would you have to travel from B to A in order to average sixty miles per hour for the round trip?<BR>\n" );
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document.write( "Think about this, assume it's 30 mi one way: <BR>\n" );
document.write( "To average 60 mph, you have cover 60 mi in 1 hr which is the round trip distance<BR>\n" );
document.write( "You have used up 1 hr just to cover 30 mi, therefore it is impossible<BR>\n" );
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document.write( "Look what happens when you solve this in the conventional way<BR>\n" );
document.write( "Let s = speed required to accomplish this<BR>\n" );
document.write( "write a time equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F30 ALIGN=MIDDLE  ALT=\"d%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2Fs ALIGN=MIDDLE  ALT=\"d%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282d%29%2F60 ALIGN=MIDDLE  ALT=\"%282d%29%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "every term has d, divide thru by d and you have<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F30 ALIGN=MIDDLE  ALT=\"1%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fs ALIGN=MIDDLE  ALT=\"1%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F60 ALIGN=MIDDLE  ALT=\"2%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply by 60 s to get rid of the denominators<BR>\n" );
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document.write( "2s + 60 = 2s; obviously, this is not possible </SPAN>\n" );
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