document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=134794>Question 134794</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I could really use some help on this word problem.\r<BR>\n" );
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document.write( "One airplane flies 80mph faster than another airplane. The first one goes 1500mi in the same time as the second travels 850mi. What is the speed of each?\r<BR>\n" );
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document.write( "Thanks for any help,\r<BR>\n" );
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document.write( "Richard </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #98633 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=98633\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  I could really use some help on this word problem. <BR>\n" );
document.write( "One airplane flies 80mph faster than another airplane. The first one goes 1500mi in the same time as the second travels 850mi. What is the speed of each? <BR>\n" );
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document.write( "1st airplane DATA:<BR>\n" );
document.write( "distance 1500 miles ; rate = r+80 mph ; time = 1500/(r+80) hrs.<BR>\n" );
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document.write( "2nd airplane DATA:<BR>\n" );
document.write( "distane = 850 miles ; rate = r mph ; time = 850/r hrs.<BR>\n" );
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document.write( "EQUATION:<BR>\n" );
document.write( "time = time<BR>\n" );
document.write( "1500/(r+80) = 850/r<BR>\n" );
document.write( "dividing by 50 you get:<BR>\n" );
document.write( "30/(r+80) = 17/r<BR>\n" );
document.write( "30r = 17r+17*80<BR>\n" );
document.write( "13r = 17*80<BR>\n" );
document.write( "r = 104.62 mph (speed of 2nd plane)<BR>\n" );
document.write( "r+80 = 184.62 mph (speed of 1st plane)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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