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The length of a rectangle is 3 m longer than its width. The area of the rectangle is 154 m². What is the width of the rectangle? ___M
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The length of a rectangle is 3 m longer than its width.

The area of the rectangle is 154 m².
What is the width of the rectangle?

___M

User Mark McCorkle
by
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1 Answer

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The area of a rectangle is length times width.

A = (w+3)*w = 154

w^2 + 3w-154 = 0

Factor

(w-11)(w+14) = 0

w = -14 or 11... It cannot be negative so the answer is 11 m


User Ezzy
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