document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=295675>Question 295675</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two planes leave Pittsburgh and Philadelphia at the same time, each going to the other city.  One plane flies 125 miles per hour faster than the other.\r<BR>\n" );
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document.write( "Find the ground speed of the faster plane if the cities are 300 miles apart and the planes pass one another after 30 minutes of flying time. Answer in units of mi/h.\r<BR>\n" );
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document.write( "Appreciate any help you can provide.  Thanks ! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #213107 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=213107\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two planes leave Pittsburgh and Philadelphia at the same time, each going to the other city.  One plane flies 125 miles per hour faster than the other.\r<BR>\n" );
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document.write( "Find the ground speed of the faster plane if the cities are 300 miles apart and the planes pass one another after 30 minutes of flying time. Answer in units of mi/h.<BR>\n" );
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document.write( "Their combined speed is 300/0.5 = 600 mi/hr<BR>\n" );
document.write( "r = the speed of the slower plane<BR>\n" );
document.write( "r + r+125 = 600<BR>\n" );
document.write( "2r = 475<BR>\n" );
document.write( "r = 237.5 mph<BR>\n" );
document.write( "2nd plane goes 362.5 mph<BR>\n" );
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