document.write( "Question 1056170: The length of a rectangle is 5 feet less than four times the width if the perimeter is 80 feet find the length and the width of the rectangle \n" ); document.write( "

Algebra.Com's Answer #671366 by algebra hello(55) $\"\"$ $\"About$

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let width of rectangle=b
\n" ); document.write( "then length of rectangle(l)=4b-5
\n" ); document.write( "perimeter of rectangle=80
\n" ); document.write( "2(l+b)=80
\n" ); document.write( "2(4b-5+b)=80
\n" ); document.write( "2(5b-5)=80
\n" ); document.write( "10(b-1)=80
\n" ); document.write( "b-1=8
\n" ); document.write( "b=9
\n" ); document.write( "so width of rectangle(b)=9 feet\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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