document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=903790>Question 903790</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of the rectangular floor of a classroom is twice as long in width. The area of the floor is 1800 square feet.what is the width of the floor in feet. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548312 by </B><A HREF=/tutors/aboutme.mpl?userid=yanyu123><B>yanyu123(2)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=yanyu123><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=548312\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First we can say the width of the classroom is x. Since the length is twice as long in width, the length is 2x.\r<BR>\n" );
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document.write( "The formula of a rectangular's area is  Area= Length * Width. We know that the area of the floor is 1800 square feet. \r<BR>\n" );
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document.write( "Therefore,   1800 = 2x * x,  1800 = 2*(x^2), x^2 = 900 and x= sqrt(900) =30. Now we know x= 30 and we set the width of the classroom is x. So, the width of the floor is 30 feet. </SPAN>\n" );
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