document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=658547>Question 658547</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLEASE HELP!<BR>\n" );
document.write( "and explain how you got the answer\r<BR>\n" );
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document.write( "A rectangular box has a surface area of 1020 square inches, a length of 6 inches, and a width of 9 inches. Find the height.\r<BR>\n" );
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document.write( "THE ANSWER IS NOT 30.4 INCHES.\r<BR>\n" );
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document.write( "Thank you!!!!!!!!!!!!!!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #410337 by </B><A HREF=/tutors/aboutme.mpl?userid=kevwill><B>kevwill(135)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=kevwill><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=kevwill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=410337\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assuming the rectangular box is closed and has 6 sides, the surface area would be:<BR>\n" );
document.write( "a = 2*l*w + 2*w*h + 2*h*l, so<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1020+=+2%2A6%2A9+%2B+2%2A9%2Ah+%2B+2%2Ah%2A6 ALIGN=MIDDLE  ALT=\"1020+=+2%2A6%2A9+%2B+2%2A9%2Ah+%2B+2%2Ah%2A6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1020+=+108+%2B+18%2Ah+%2B+12%2Ah ALIGN=MIDDLE  ALT=\"1020+=+108+%2B+18%2Ah+%2B+12%2Ah\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2Ah+%2B+12%2Ah+=+1020+-+108 ALIGN=MIDDLE  ALT=\"18%2Ah+%2B+12%2Ah+=+1020+-+108\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%2Ah+=+912 ALIGN=MIDDLE  ALT=\"30%2Ah+=+912\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h+=+912%2F30+=+30%2612%2F30+=+30%264%2F10+=+30.4 ALIGN=MIDDLE  ALT=\"h+=+912%2F30+=+30%2612%2F30+=+30%264%2F10+=+30.4\"   DISABLED_style= \"max-width:90%; height:auto;\" > inches\r<BR>\n" );
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document.write( "However, this isn't the correct answer.  So our initial assumption that the box is closed must be wrong.  If the box is open at the top and has only a bottom and 4 sides, the surface area is<BR>\n" );
document.write( "a = l*w + 2*w*h + 2*h*l, so<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1020+=+6%2A9+%2B+2%2A9%2Ah+%2B+2%2Ah%2A6 ALIGN=MIDDLE  ALT=\"1020+=+6%2A9+%2B+2%2A9%2Ah+%2B+2%2Ah%2A6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1020+=+54+%2B+18%2Ah+%2B+12%2Ah ALIGN=MIDDLE  ALT=\"1020+=+54+%2B+18%2Ah+%2B+12%2Ah\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2Ah+%2B+12%2Ah+=+1020+-+54 ALIGN=MIDDLE  ALT=\"18%2Ah+%2B+12%2Ah+=+1020+-+54\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%2Ah+=+966 ALIGN=MIDDLE  ALT=\"30%2Ah+=+966\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h+=+966%2F30+=+32%266%2F30+=+32%261%2F5+=+32.2 ALIGN=MIDDLE  ALT=\"h+=+966%2F30+=+32%266%2F30+=+32%261%2F5+=+32.2\"   DISABLED_style= \"max-width:90%; height:auto;\" > inches<BR>\n" );
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