document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=810591>Question 810591</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Aplane flying 3458-mi from new york city to london has a 50mph tailwind. The flights point of no return is the point at which the flight time required to return to new york is the same as the time required to continue to london. If the planes speed in still air is 860 mph, how far is new york from the point of no return?<BR>\n" );
document.write( "The distance from new york to the point of no return is ____mi.<BR>\n" );
document.write( "(round to the nearest integer.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #488310 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=488310\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Aplane flying 3458-mi from new york city to london has a 50mph tailwind. The flights point of no return is the point at which the flight time required to return to new york is the same as the time required to continue to london. If the planes speed in still air is 860 mph, how far is new york from the point of no return?<BR>\n" );
document.write( "The distance from new york to the point of no return is ____mi.\r<BR>\n" );
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document.write( "still air speed = 860 mph<BR>\n" );
document.write( "wind speed = 50 mph\r<BR>\n" );
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document.write( "t=d/r\r<BR>\n" );
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document.write( "let x be the distance of point of no return from NY<BR>\n" );
document.write( "distance from London = 3458-x\r<BR>\n" );
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document.write( "time to London d/r= 3458-x/(860+50)<BR>\n" );
document.write( "=(3458-x)/910\r<BR>\n" );
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document.write( "time to NY  *against wind)<BR>\n" );
document.write( "=x/(860-50)<BR>\n" );
document.write( "=x/810\r<BR>\n" );
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document.write( "These times are same\r<BR>\n" );
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document.write( "(3458-x)/910=x/810\r<BR>\n" );
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document.write( "910x=810*(3458-x)\r<BR>\n" );
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document.write( "910x=2800980-810x\r<BR>\n" );
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document.write( "1720x=2800980<BR>\n" );
document.write( "x=1628 \r<BR>\n" );
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document.write( "the distance of point of no return from NY= 1628 miles<BR>\n" );
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