document.write( "Question 513662: The perimeter of a rectangle is 100 feet. The length is 30 feet what is the area? \n" ); document.write( "
Algebra.Com's Answer #343104 by umail08(87)\"\" \"About 
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Let: L=Length and W=Width
\n" ); document.write( "Perimeter = 2L + 2W
\n" ); document.write( "100ft = 2(30ft) + 2W
\n" ); document.write( "100ft = 60ft + 2W
\n" ); document.write( "100ft – 60ft = 60ft – 60t + 2W
\n" ); document.write( "40ft = 2W
\n" ); document.write( "40ft/2 = 2W/2
\n" ); document.write( "20ft = W
\n" ); document.write( "Area = L x W
\n" ); document.write( "Area = 30ft x 20ft
\n" ); document.write( "Area = 600 sq.ft.
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