document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1036138>Question 1036138</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a rectangle has a width of x+9 and its width is x+7. Find the dimensions of the rectangle if its area is 143 square meters. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #650749 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=650749\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The area of a rectangle is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+L%2AW ALIGN=MIDDLE  ALT=\"A+=+L%2AW\"   DISABLED_style= \"max-width:90%; height:auto;\" > where A is the area, L is the length and W is the width.\r<BR>\n" );
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document.write( "In this case, A = 143, L = x+7 and W = x+9. \r<BR>\n" );
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document.write( "Let's plug these expressions in. Then let's solve for x.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+%28x%2B7%29%2A%28x%2B9%29 ALIGN=MIDDLE  ALT=\"A+=+%28x%2B7%29%2A%28x%2B9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=143+=+%28x%2B7%29%2A%28x%2B9%29 ALIGN=MIDDLE  ALT=\"143+=+%28x%2B7%29%2A%28x%2B9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=143+=+x%2A%28x%2B9%29%2B7%2A%28x%2B9%29 ALIGN=MIDDLE  ALT=\"143+=+x%2A%28x%2B9%29%2B7%2A%28x%2B9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=143+=+x%5E2%2B9x%2B7x%2B63 ALIGN=MIDDLE  ALT=\"143+=+x%5E2%2B9x%2B7x%2B63\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=143+=+x%5E2%2B16x%2B63 ALIGN=MIDDLE  ALT=\"143+=+x%5E2%2B16x%2B63\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=143-143+=+x%5E2%2B16x%2B63-143 ALIGN=MIDDLE  ALT=\"143-143+=+x%5E2%2B16x%2B63-143\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B16x-80=0 ALIGN=MIDDLE  ALT=\"x%5E2%2B16x-80=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-4%29%28x%2B20%29=0 ALIGN=MIDDLE  ALT=\"%28x-4%29%28x%2B20%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-4=0 ALIGN=MIDDLE  ALT=\"x-4=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B20=0 ALIGN=MIDDLE  ALT=\"x%2B20=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=4 ALIGN=MIDDLE  ALT=\"x=4\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-20 ALIGN=MIDDLE  ALT=\"x=-20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The possible solutions are <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=4 ALIGN=MIDDLE  ALT=\"x=4\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-20 ALIGN=MIDDLE  ALT=\"x=-20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=4 ALIGN=MIDDLE  ALT=\"x=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then\r<BR>\n" );
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document.write( "L = x+7 = 4+7 = 11\r<BR>\n" );
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document.write( "W = x+9 = 4+9 = 13\r<BR>\n" );
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document.write( "So if x = 4, then the rectangle is 13 meters by 11 meters. Notice how 11*13 = 143\r<BR>\n" );
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document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+-20 ALIGN=MIDDLE  ALT=\"x+=+-20\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then\r<BR>\n" );
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document.write( "L = x+7 = -20+7 = -13\r<BR>\n" );
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document.write( "W = x+9 = -20+9 = -11\r<BR>\n" );
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document.write( "but having negative side lengths doesn't make much sense. So we ignore the solution x = -20\r<BR>\n" );
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document.write( "The only practical solution is x = 4\r<BR>\n" );
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document.write( "That leads to the dimensions of the rectangle being 13 meters by 11 meters </SPAN>\n" );
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