document.write( "Question 606523: I have done these problems before but I am stumped.....
\n" ); document.write( "The area of a rectangular wall is 240 sq. ft. It's length is 6 feet shorter than three times it's width. Find the length and width of the wall. \r
\n" ); document.write( "\n" ); document.write( "I know A=LW and I set it up as w(3w-6)=240\r
\n" ); document.write( "\n" ); document.write( "I got answers that don't work. How do I solve this? Have I set it up correctly??\r
\n" ); document.write( "\n" ); document.write( "Thanks,
\n" ); document.write( "Tammy \n" ); document.write( "
Algebra.Com's Answer #382090 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The area of a rectangular wall is 240 sq. ft. It's length is 6 feet shorter than three times it's width. Find the length and width of the wall.
\n" ); document.write( "I know A=LW and I set it up as w(3w-6)=240
\n" ); document.write( "--------------------------
\n" ); document.write( "3w^2-6w = 240
\n" ); document.write( "w^2-2w-80 = 0
\n" ); document.write( "-------
\n" ); document.write( "(w-10)(w+8) = 0
\n" ); document.write( "width = 10 ft.
\n" ); document.write( "length = 3w-6 = 30-6 = 24 ft
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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