document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=241741>Question 241741</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two planes leave Dallas Airport at the same time, one flying east at a speed of 550 mph and the other flying west at the speed of 650 mph. How long does it take until they are 2000 miles apart?\r<BR>\n" );
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document.write( "A helicopter leaves City Airport and flies north at 180 mph. Twenty minutes later a plane leaves the airport and follows the helicopter at 330 mph. How long does it take the plane to overtake the helicopter?\r<BR>\n" );
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document.write( "A rectangle is 5 cm longer than it is wide. If its length and width are both increased by 3 cm, its area is increased by 60 cm squared. Find the dimensions of the original rectangle.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #177107 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=177107\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 550T+650T=2,000<BR>\n" );
document.write( "1,200T=2,000<BR>\n" );
document.write( "T=2,000/1,200<BR>\n" );
document.write( "T=5/3 OR 1 HR. 40 MIN THEY WILL BE 2,000 MILES APART.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "550*5/3+650*5/3=2,000<BR>\n" );
document.write( "(2,750+3,250)/3=2,000<BR>\n" );
document.write( "6,000=6,000<BR>\n" );
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document.write( "180T=330(T-1/3)<BR>\n" );
document.write( "180T=330T-110<BR>\n" );
document.write( "180T-330T=-110<BR>\n" );
document.write( "-150T=-110<BR>\n" );
document.write( "T=-110/-150<BR>\n" );
document.write( "T=.7333 HOURS OR 44 MIN. TO OVERTAKE THE HELICOPTER AFTER IT LEAVES.<BR>\n" );
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document.write( "L=W+5 ORIGINAL SIZE.<BR>\n" );
document.write( "L+3 & W+3 IS THE EXPANDED SIZE.<BR>\n" );
document.write( "LW=(L+3)(W+3)-60<BR>\n" );
document.write( "(W+5)W=(W+3+5)(W+3)-60<BR>\n" );
document.write( "W^2+5W=(W+8)(W+3)-60<BR>\n" );
document.write( "W^2+5W=W^2+11W+24-60<BR>\n" );
document.write( "5W-11W=24-60<BR>\n" );
document.write( "-6W=-36<BR>\n" );
document.write( "W=-36/-6<BR>\n" );
document.write( "W=6 FOR THE ORIGINAL WIDTH.<BR>\n" );
document.write( "L=6+5=11 FOR THE ORIGINAL LENGTH<BR>\n" );
document.write( "11*6=66 ORIGINAL AREA.<BR>\n" );
document.write( "(6+3)(11+3)=66+60<BR>\n" );
document.write( "9*14=126<BR>\n" );
document.write( "126=126<BR>\n" );
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