SOLUTION: The area of a rectangular wall in a classroom is 264 square feet. Its length is 9 feet shorter than three times its width. Find the length and width of the wall of the classroom.
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Question 481501: The area of a rectangular wall in a classroom is 264 square feet. Its length is 9 feet shorter than three times its width. Find the length and width of the wall of the classroom. Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! wX(3w-9)=264
3w2-9w-264=0
w2-3w-88=0
(w-11)(w+8)=0
w=11 or -8
Throwing out the negative answer, we get the width of the wall to be 11 feet, and the length to be 24..
