A fence is to be built to enclose a rectangular area of 280 square feet. The fence along three sides is to be made of material that costs 5 dollars per foot, and the material for the fourth side cost 15 dollars per foot. Find the dimensions of the inclosure that is most economical to construct

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Q: A fence is to be built to enclose a rectangular area of 280 square feet. The fence along three sides…

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