document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=168149>Question 168149</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This one has been answered but the answer does not make sense.  I emailed the tutor and have not heard back.  Will someone please take a look at this for me?<BR>\n" );
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document.write( "A square mat has a uniform red border on all four sides.  The rest of the mat is blue.  The width of the blue square is three-fourths the width of the entire square.  If the area colored red is 28 m squared, determine the lengths of each side of the mat. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123922 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=123922\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> lets call the length of the blue mat y and the width of the border x, which means the side of the entire area is y+2x\r<BR>\n" );
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document.write( "we also know that, y=(3/4)(y+2x)--->y=(3/4)y+(6/4)x--->1/4y=6/4x-->y=6x\r<BR>\n" );
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document.write( "since area of the red(28)  is equal to entire area minus the blue area\r<BR>\n" );
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document.write( "we have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y%2B2x%29%5E2-%28y%29%5E2=28 ALIGN=MIDDLE  ALT=\"%28y%2B2x%29%5E2-%28y%29%5E2=28\"   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=y%5E2%2B4xy%2B4x%5E2-y%5E2=28 ALIGN=MIDDLE  ALT=\"y%5E2%2B4xy%2B4x%5E2-y%5E2=28\"   DISABLED_style= \"max-width:90%; height:auto;\" >---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2%2B4xy=28 ALIGN=MIDDLE  ALT=\"4x%5E2%2B4xy=28\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "substitute value of y which is 6x into the equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2%2B4%28x%29%286x%29=28 ALIGN=MIDDLE  ALT=\"4x%5E2%2B4%28x%29%286x%29=28\"   DISABLED_style= \"max-width:90%; height:auto;\" >----><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=28x%5E2=28 ALIGN=MIDDLE  ALT=\"28x%5E2=28\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=1 ALIGN=MIDDLE  ALT=\"x%5E2=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=1 ALIGN=MIDDLE  ALT=\"x=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "y=6x(1)=6\r<BR>\n" );
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document.write( "so the sides of the entire area is y+2x ---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%286%2B2=8%29 ALIGN=MIDDLE  ALT=\"highlight%286%2B2=8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > meters\r<BR>\n" );
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document.write( " </SPAN>\n" );
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