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The area of a rectangular portion of a national park is (48x^2+16x)square km. If the length is 8x km long, what is the width, in km?

The area of a rectangular portion of a national park is (48x^2+16x)square km. If the length is 8x km long, what is the width, in km?
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The area of a rectangular portion of a national park is (48x^2+16x)square km. If the length is 8x km long, what is the width, in km?

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User Gil Margolin
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1 Answer

6 votes
Area is equal to width times length:
A = w*l
We know A (48x^2+16x), l = 8x. Plugging into the equation:
(48x^2+16x) = 8x * w Divide both sides by 8x
6x + 2 = w

The answer is width = (6x +2)km
answered
User Laurent Schoelens
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