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The perimeter of a lot is 84 feet. The length exceeds the width by 16 feet. Find the length and width​

Sagot :

Step-by-step explanation:

The area of the floor of a rectangular room is 84 square feet. The length of the room is 5 feet more than its width. What is the width and length of a room?

A = L x W

84 = (W + 5) x W

84 = W² + 5W

W² + 5W - 84 = 0

factorise

(W - 7)(W + 12) = 0

W = 7

L = 7 + 5 = 12

Hope it Help.

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