document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=911748>Question 911748</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The width (w) of a rectangular solar cell is 33 cm less than its length (l). Express the perimeter (P) of the cell as a function of its width.\r<BR>\n" );
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document.write( "Write your answer as an equation in the form: P=mw+b </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #553332 by </B><A HREF=/tutors/aboutme.mpl?userid=ichigo449><B>ichigo449(30)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ichigo449><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=553332\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> As practice for linear algebra, topology, differential equations/ all math later in life: THINK GEOMETRICALLY AND DRAW A PICTURE! <BR>\n" );
document.write( "The perimeter of an object is the sum its side lengths or, since a rectangle is symmetrical, 2w+2l. We are given a condition on width and can thus substitute l = w+33 into the perimeter equation. Explicitly, 2w + 2(w+33) = 4w+66. Therefore P =4w+66 which is the required form. <BR>\n" );
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