document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119405>Question 119405</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0618078320/algebrahomeworkh>Mathematics concepts and skills practice workbook</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A rectangle has a perimeter of 78 inches. Its length is 6 inches more than twice its width.\r<BR>\n" );
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document.write( "a. make a sketch of the rectangle and label its sides<BR>\n" );
document.write( "b. find the recangle's length and width.\r<BR>\n" );
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document.write( "I tried doing this but it gets me confused.<BR>\n" );
document.write( "I did:\r<BR>\n" );
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document.write( "78=2w+6<BR>\n" );
document.write( "72=2w\r<BR>\n" );
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document.write( "Then I'm just lost. If i continue, the perimeter doesnt add up. Please help!<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87484 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=87484\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A rectangle has a perimeter of 78 inches. Its length is 6 inches more than twice its width.<BR>\n" );
document.write( "a. make a sketch of the rectangle and label its sides<BR>\n" );
document.write( "b. find the recangle's length and width.\r<BR>\n" );
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document.write( "I tried doing this but it gets me confused.<BR>\n" );
document.write( "I did:<BR>\n" );
document.write( "78=2w+6<BR>\n" );
document.write( "72=2w<BR>\n" );
document.write( "Then I'm just lost. If i continue, the perimeter doesnt add up. Please help!<BR>\n" );
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document.write( "Let's start over:<BR>\n" );
document.write( "Let x = width<BR>\n" );
document.write( "It said the length is 6\" more the twice the width therefore:<BR>\n" );
document.write( "(2x+6) = length<BR>\n" );
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document.write( "You know:<BR>\n" );
document.write( "2L + 2W = 78<BR>\n" );
document.write( "Substitute (2x+6) for L and x for W:<BR>\n" );
document.write( "2(2x+6) + 2x = 78<BR>\n" );
document.write( "4x + 12 + 2x = 78<BR>\n" );
document.write( "6x = 78 - 12<BR>\n" );
document.write( "6x = 66<BR>\n" );
document.write( "x = 66/6<BR>\n" );
document.write( "x = 11\" is the width<BR>\n" );
document.write( "then<BR>\n" );
document.write( "2(11) + 6 = 28\" is the length<BR>\n" );
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document.write( "Check our perimeter<BR>\n" );
document.write( "2(28) + 2(11) =<BR>\n" );
document.write( "56 + 22 = 78; confirms our solution<BR>\n" );
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document.write( "I think using x in these problems reduces the confusion factor, but you could<BR>\n" );
document.write( "use w throughout if you prefer that\r<BR>\n" );
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document.write( ", </SPAN>\n" );
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