document.write( "Question 719359: The width of a rectangular rug is one foot smaller than its length. The area of the rug is 30 square feet. Find the length and the width. Whats this in feet??? \n" ); document.write( "
Algebra.Com's Answer #441330 by mathworm7271(5)\"\" \"About 
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Let's say x is the length
\n" ); document.write( "then x-1 is the width
\n" ); document.write( "We know that Area=Length(width)
\n" ); document.write( "So, we substitute...
\n" ); document.write( "30=x(x-1)
\n" ); document.write( "Use the Distributive property
\n" ); document.write( "30=x^2-x
\n" ); document.write( "Subtract 30 from each side
\n" ); document.write( "0=x^2-x-30
\n" ); document.write( "Now we have to factor the Trinomial
\n" ); document.write( "0=(x-6)(x+5)
\n" ); document.write( "So that means either x-6=0 or x+5=0
\n" ); document.write( "Distribute and x=6 or x=-5
\n" ); document.write( "Since the length of a rug cannot be negative, x=6
\n" ); document.write( "So, the length is 6 and the width is 6-1 which is 5.
\n" ); document.write( "Make sure you have the proper units (feet)
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