document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=337187>Question 337187</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How far can airplane fly from its base, and yet return within 3 hours, if its outgoing speed is 600 kilometers per hour and its returning speed is 400 kilometers per hour? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #241820 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=241820\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How far can airplane fly from its base, and yet return within 3 hours,<BR>\n" );
document.write( " if its outgoing speed is 600 kilometers per hour and its returning speed is 400 kilometers per hour?<BR>\n" );
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document.write( "let d = the one-way distance<BR>\n" );
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document.write( "Write a time equation, Time = dist/speed<BR>\n" );
document.write( "out time + return time = 3 hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F600 ALIGN=MIDDLE  ALT=\"d%2F600\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F400 ALIGN=MIDDLE  ALT=\"d%2F400\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 3<BR>\n" );
document.write( "multiply by 1200 to get rid of the denominators, results<BR>\n" );
document.write( "2d + 3d = 3(1200)<BR>\n" );
document.write( "5d = 3600<BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3600%2F5 ALIGN=MIDDLE  ALT=\"3600%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d = 720 mi the plane can fly from it's base and return<BR>\n" );
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document.write( "Check by finding the times<BR>\n" );
document.write( "720/600 = 1.2 hrs<BR>\n" );
document.write( "720/400 = 1.8 hrs<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "total time: 3 hrs; confirms our solution of 720 mi </SPAN>\n" );
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