SOLUTION: The total area of a rectangle is 120 feet squared. The length of the rectangle is three times the width, plus 9. Using the above information, write out the quadratic equation you w
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-> SOLUTION: The total area of a rectangle is 120 feet squared. The length of the rectangle is three times the width, plus 9. Using the above information, write out the quadratic equation you w
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Question 1059993: The total area of a rectangle is 120 feet squared. The length of the rectangle is three times the width, plus 9. Using the above information, write out the quadratic equation you would use to solve: what is the length and width of the rectangle? Finally, what is the length and width of the rectangle?
You can put this solution on YOUR website! Let w be the width. Then the length would be 3w+9. So:
w(3w+9)=120
3w²+9w-120=0
w²+3w-40=0
(w+8)(w-5)=0
w=5 or -8
The length and width of the rectangle is 24 x 5 ft. ☺☺☺☺
