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A rectangle has an area of 63 square meters and a length of 9 meters. What is the width, in meters, of the rectangle?

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A rectangle has an area of 63 square meters and a length of 9 meters. What is the width, in meters, of the rectangle?

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Choice A is correct. The area $A$, in square meters, of a rectangle is the product of its length $l$, in meters, and its width, $w$, in meters; thus, $A=lw$. It's given that a rectangle has an area of 63 square meters and a length of 9 meters. Substituting 63 for $A$ and 9 for $l$ in the equation $A=lw$ yields $63=9w$. Dividing both sides of this equation by 9 yields $7=w$. Therefore, the width, in meters, of the rectangle is 7.

Choice B is incorrect. This is the difference between the area, in square meters, and the length, in meters, of the rectangle, not the width, in meters, of the rectangle.

Choice C is incorrect. This is the square of the length, in meters, not the width, in meters, of the rectangle.

Choice D is incorrect. This is the product of the area, in square meters, and the length, in meters, of the rectangle, not the width, in meters, of the rectangle.

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A rectangle has an area of 63 square meters and a length of 9 meters. What is the width, in meters, of the rectangle?

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567

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