document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1208792>Question 1208792</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangular airport runway is x feet long and y feet wide. If its length is to be made 100 feet longer, by how many square feet will its area be increased?\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 #847247 by </B><A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><B>math_tutor2020(3816)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><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=847247\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%0D%0Adrawing%28400%2C400%2C-4%2C4%2C-4%2C4%2C%0D%0Aline%28-3%2C1%2C3%2C1%29%2Cline%283%2C1%2C3%2C-1%29%2Cline%283%2C-1%2C-3%2C-1%29%2Cline%28-3%2C-1%2C-3%2C1%29%2Cline%281%2C-1%2C1%2C1%29%2C%0D%0Alocate%28-3.52%2C0.22%2C%22y%22%29%2Clocate%283.52-0.3%2C0.22%2C%22y%22%29%2Clocate%28-1.22%2C1.44-0.1%2C%22x%22%29%2Clocate%281.78%2C1.58-0.1%2C%22100%22%29%2Clocate%28-1.22%2C-1.44%2B0.3%2C%22x%22%29%2Clocate%281.78%2C-1.58%2B0.5%2C%22100%22%29%2Clocate%28-1.62%2C0.18%2C%22original%22%29%2Clocate%281.7%2C0.16%2C%22extra%22%29%0D%0A%29%0D%0A ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The original runway is the rectangle on the left.<BR>\n" );
document.write( "The added part is the rectangle on the right which has an area of <font color=red>100*y square feet</font>.<BR>\n" );
document.write( "For example, if y = 15 then 100*y = 100*15 = 1500 square feet has been added.<BR>\n" );
document.write( "But since we don't know the value of y, we leave the expression 100y as it is.\r<BR>\n" );
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document.write( "Answer: <font color=red>100y</font><BR>\n" );
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