document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=101564>Question 101564</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve.<BR>\n" );
document.write( "The length of a rectangular room is 4 feet longer than twice the width. If the room's perimeter is 140 feet, what are the room's dimensions? <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 #73929 by </B><A HREF=/tutors/aboutme.mpl?userid=doukungfoo><B>doukungfoo(195)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=doukungfoo><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=doukungfoo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=73929\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The perimeter of a rectangle is equal to the sum of all its sides.<BR>\n" );
document.write( "A rectangle has two sides that represent its length and two sides that represent its width.<BR>\n" );
document.write( "So with this knowledge about a rectangle we can write a formula:<BR>\n" );
document.write( "2(Length) + 2(Width) = Perimeter<BR>\n" );
document.write( "Thats 2 times the length plus 2 times the widthe equals perimeter.<BR>\n" );
document.write( "Now we are told that the length of a rectangular room is 4 ft longer than twice its width.<BR>\n" );
document.write( "Lets set width equal to x.<BR>\n" );
document.write( "Width = x<BR>\n" );
document.write( "Now define the length in terms of x<BR>\n" );
document.write( "Length = 2x + 4<BR>\n" );
document.write( "We are given the perimeter is 140 feet.<BR>\n" );
document.write( "Now we can plug all this information into our formula and solve for x:<BR>\n" );
document.write( "2(Length) + 2(Width) = Perimeter<BR>\n" );
document.write( "2(2x+4) + 2(x) = 140<BR>\n" );
document.write( "4x + 8 + 2x = 140<BR>\n" );
document.write( "6x + 8 = 140<BR>\n" );
document.write( "6x = 132<BR>\n" );
document.write( "x = 22<BR>\n" );
document.write( "<b>Answer: the width is 22 ft</b><BR>\n" );
document.write( "Now find the length<BR>\n" );
document.write( "Length = 2x + 4<BR>\n" );
document.write( "Length = 2(22) + 4<BR>\n" );
document.write( "Length = 44 + 4<BR>\n" );
document.write( "Length = 48<BR>\n" );
document.write( "<b>Answer: the length is 48 ft</b><BR>\n" );
document.write( "Check answers:<BR>\n" );
document.write( "2(Length) + 2(Width) = Perimeter<BR>\n" );
document.write( "2(48) + 2(22) = 140<BR>\n" );
document.write( "96 + 44 =140<BR>\n" );
document.write( "140 = 140 \r<BR>\n" );
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