document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=224859>Question 224859</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An executive drove from home at an average speed of 30mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 60mph. The entire distance was 150 miles. The entire trip took 3 hrs. Find the distance from the airport to the corporate office. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #167968 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=167968\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An executive drove from home at an average speed of 30mph to an airport where a helicopter was waiting.<BR>\n" );
document.write( " The executive boarded the helicopter and flew to the corporate offices at an average speed of 60mph.<BR>\n" );
document.write( " The entire distance was 150 miles.<BR>\n" );
document.write( " The entire trip took 3 hrs. Find the distance from the airport to the corporate office.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let d = distance from the airport to the office (at 60 mph)<BR>\n" );
document.write( "the entire distance give as 150 mi, therefore:<BR>\n" );
document.write( "(150-d) = distance from home to airport (at 30 mph)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Write a time equation: Time = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dist%2Fspeed ALIGN=MIDDLE  ALT=\"dist%2Fspeed\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "drive time + helicopter time = 3 hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28150-d%29%29%2F30 ALIGN=MIDDLE  ALT=\"%28%28150-d%29%29%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F60 ALIGN=MIDDLE  ALT=\"d%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 3<BR>\n" );
document.write( "Multiply equation by 60:<BR>\n" );
document.write( "60*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28150-d%29%29%2F30 ALIGN=MIDDLE  ALT=\"%28%28150-d%29%29%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" > + 60*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F60 ALIGN=MIDDLE  ALT=\"d%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 3(60)<BR>\n" );
document.write( "Cancel out denominators<BR>\n" );
document.write( "2(150-d) + d = 180<BR>\n" );
document.write( "300 - 2d + d = 180<BR>\n" );
document.write( ":<BR>\n" );
document.write( "-2d + d = 180 - 300<BR>\n" );
document.write( ":<BR>\n" );
document.write( "-d = -120<BR>\n" );
document.write( "d = 120 mi airport to office<BR>\n" );
document.write( "then<BR>\n" );
document.write( "150 - 120 = 30 min home to airport<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check solution in original equaiton<BR>\n" );
document.write( "30/30 + 120/60 = 3 </SPAN>\n" );
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