document.write( "Question 102322: the lenght of a rectangle is 4 inches greater thatn the width the perimeter of the recatangle is 24 inches find the dimensions of the rectangle \n" ); document.write( "
Algebra.Com's Answer #74379 by doukungfoo(195)\"\" \"About 
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Perimeter of a rectangle is 2 times the length plus 2 times the width
\n" ); document.write( "written as a formula it looks like this
\n" ); document.write( "P = 2L + 2W
\n" ); document.write( "Where P is perimeter
\n" ); document.write( "L is length and
\n" ); document.write( "W is width
\n" ); document.write( "Ok so back to the rectangle in this problem
\n" ); document.write( "Lets call the width x
\n" ); document.write( "ok so
\n" ); document.write( "width = x
\n" ); document.write( "Now we are told that the length is 4 inches greater than the width
\n" ); document.write( "ok well if the width is x then
\n" ); document.write( "the length is x + 4
\n" ); document.write( "Finally we are told that the perimeter is 24 inches
\n" ); document.write( "so lets put all this into the perimeter formula
\n" ); document.write( "P = 2L + 2W
\n" ); document.write( "24 = 2(x+4) + 2(x)
\n" ); document.write( "24 = 2x + 8 + 2x
\n" ); document.write( "24 = 4x + 8
\n" ); document.write( "16 = 4x
\n" ); document.write( "4 = x
\n" ); document.write( "Answer: the width is 4 inches
\n" ); document.write( "now use this to find the length
\n" ); document.write( "length is x + 4
\n" ); document.write( "so
\n" ); document.write( "4 + 4 = 8
\n" ); document.write( "Answer: the length is 8 inches
\n" ); document.write( "Check both answers in the perimeter formula
\n" ); document.write( "P = 2L + 2W
\n" ); document.write( "24 = 2(8) + 2(4)
\n" ); document.write( "24 = 16 + 8
\n" ); document.write( "24 = 24\r
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