document.write( "Question 520103: A rectangular window has a length that is three times the width, the perimeter is 56 feet, find the length and width of the window \n" ); document.write( "

Algebra.Com's Answer #345927 by Maths68(1474) $\"\"$ $\"About$

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Perimeter = P = 56
\n" ); document.write( "Length = l = 3w (Given)\r
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\n" ); document.write( "\n" ); document.write( "Length = ?
\n" ); document.write( "Width = ?\r
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\n" ); document.write( "\n" ); document.write( "Perimeter of rectangel = 2l + 2w\r
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\n" ); document.write( "\n" ); document.write( "p = 2l + 2w
\n" ); document.write( "56 = 2(3w) + 2w
\n" ); document.write( "56 = 6w + 2w
\n" ); document.write( "56 = 8w
\n" ); document.write( "56/8=8w/8
\n" ); document.write( "7=w
\n" ); document.write( "w=7\r
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\n" ); document.write( "\n" ); document.write( "Given
\n" ); document.write( "Length = l = 3w
\n" ); document.write( "Length = l = 3(7)
\n" ); document.write( "Length = 21\r
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\n" ); document.write( "\n" ); document.write( "Perimeter = P = 56 ft.
\n" ); document.write( "Length = l = 21 ft.
\n" ); document.write( "Width = 7 ft\r
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