document.write( "Question 987354: the floor of a shed has an area of 90 square feet. the floor is in the shape of a rectangle whose length is 3 feet less than twice the width. find the length and the width of the floor of the shed. use the formula area= length x width \n" ); document.write( "

Algebra.Com's Answer #608083 by Boreal(15235) $\"\"$ $\"About$

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l*w=90
\n" ); document.write( "x=width
\n" ); document.write( "2x-3=length
\n" ); document.write( "x(2x-3)=90 units are ft*ft=sq ft.
\n" ); document.write( "2x^2-3x-90=0, moving the 90 to the left side.
\n" ); document.write( "(2x-15)(x+6)=0
\n" ); document.write( "2x-15=0
\n" ); document.write( "x=(15/2), or 7.5 ft
\n" ); document.write( "The other foot is negative and may be ignored.
\n" ); document.write( "Width is 7.5 feet
\n" ); document.write( "Length is 12 feet.
\n" ); document.write( "Area is 90 sq ft. \n" ); document.write( "

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