document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=209776>Question 209776</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The perimeter of a rectangular building is 234 feet. The width is 25 feet shorter than the length. What are the dimensions? (Let W represent the width and L represent the length.) Is the answer A,B,C, or D? I couldn't figure it out. Thank you.\r<BR>\n" );
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document.write( "A) W = L - 25, 2L + 2W = 234<BR>\n" );
document.write( "B) W = L - 25, L + W = 234<BR>\n" );
document.write( "C) L = W - 25, 2L + W = 234<BR>\n" );
document.write( "D) W = L + 25, 2L + 2W = 234  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #158573 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=158573\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since \"The width is 25 feet shorter than the length\", this means that the width W is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W=L-25 ALIGN=MIDDLE  ALT=\"W=L-25\"   DISABLED_style= \"max-width:90%; height:auto;\" >. In other words, take the length L and subtract 25 ft to get the width.\r<BR>\n" );
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document.write( "Ex: if the length is 50 ft, then the width is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W=50-25=25 ALIGN=MIDDLE  ALT=\"W=50-25=25\"   DISABLED_style= \"max-width:90%; height:auto;\" > ft\r<BR>\n" );
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document.write( "Now it helps to remember that the perimeter formula is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=2W%2B2L ALIGN=MIDDLE  ALT=\"P=2W%2B2L\"   DISABLED_style= \"max-width:90%; height:auto;\" > which you could rearrange to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2L%2B2W=P ALIGN=MIDDLE  ALT=\"2L%2B2W=P\"   DISABLED_style= \"max-width:90%; height:auto;\" > (as the answer choices do so). Now plug in the perimeter <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=234 ALIGN=MIDDLE  ALT=\"P=234\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2L%2B2W=234 ALIGN=MIDDLE  ALT=\"2L%2B2W=234\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Putting this together, we have the equations: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W=L-25 ALIGN=MIDDLE  ALT=\"W=L-25\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2L%2B2W=234 ALIGN=MIDDLE  ALT=\"2L%2B2W=234\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "So the answer is A)\r<BR>\n" );
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document.write( "Note: to find W and L, simply use substitution or elimination on the two equations. </SPAN>\n" );
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