document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=304523>Question 304523</A>: <I><SPAN STYLE=\"word-break: break-all;\"> While hiking the Peralta Trail to Wheeler’s Needle and back, Rick spent 60% of his time walking uphill to Wheeler’s Needle and 40% of his time returning by the same trail.  If he averaged 2 miles per hour uphill, what was his average speed for the round-trip?\r<BR>\n" );
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document.write( "A. 2 1/3 mph  B. 2.25 mph   C. 2.4 mph  D. 2.5 mph  E.  2.6 mph<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 #218094 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=218094\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Rick spent 60% of his time walking uphill to Wheeler’s Needle and 40% of his time returning by the same trail. <BR>\n" );
document.write( "If he averaged 2 miles per hour uphill, what was his average speed for the round-trip? <BR>\n" );
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document.write( "Let t = total time for the round trip<BR>\n" );
document.write( "then using the distance equation dist = speed * time<BR>\n" );
document.write( "2(.6t )= 1.2t distance one way<BR>\n" );
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document.write( "Find the speed (s) down hill, using a distance equation <BR>\n" );
document.write( "s(.4t) = 1.2t<BR>\n" );
document.write( ".4st = 1.2t<BR>\n" );
document.write( "Divide by t<BR>\n" );
document.write( ".4s = 1.2<BR>\n" );
document.write( "s = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.2%2F.4 ALIGN=MIDDLE  ALT=\"1.2%2F.4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "s = 3 mph down hill speed<BR>\n" );
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document.write( "Find the average speed (a) using a time equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28.6t%29%2F2 ALIGN=MIDDLE  ALT=\"%28.6t%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28.4t%29%2F3 ALIGN=MIDDLE  ALT=\"%28.4t%29%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2Fa ALIGN=MIDDLE  ALT=\"t%2Fa\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "multiply by 6a<BR>\n" );
document.write( "3a(.6t) + 2a(.4t) = 6t<BR>\n" );
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document.write( "1.8at + .8at = 6t<BR>\n" );
document.write( "2.6at = 6t<BR>\n" );
document.write( "Divide both sides by t<BR>\n" );
document.write( "2.6a = 6<BR>\n" );
document.write( "a = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2F2.6 ALIGN=MIDDLE  ALT=\"6%2F2.6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "a = 2.31 mph is the average speed<BR>\n" );
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document.write( "Check solution<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28.6t%29%2F2 ALIGN=MIDDLE  ALT=\"%28.6t%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28.4t%29%2F3 ALIGN=MIDDLE  ALT=\"%28.4t%29%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F2.3 ALIGN=MIDDLE  ALT=\"t%2F2.3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Divide thru by t<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28.6%29%2F2 ALIGN=MIDDLE  ALT=\"%28.6%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28.4%29%2F3 ALIGN=MIDDLE  ALT=\"%28.4%29%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2.31 ALIGN=MIDDLE  ALT=\"1%2F2.31\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".3 + .133 = .433\r<BR>\n" );
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document.write( "I can't seem to come up with one the given solutions??? </SPAN>\n" );
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