A company wishes to manufacture a box with a volume of 20 cubic feet that is open on top and is twice as long as it is wide. Find the width of the box that can be produced using the minimum amount of material. Round to the nearest​ tenth, if necessary.

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A: *As per the guidelines, only the first question answered. Please repost the remaining questions…

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A: For the solution follow the next steps.

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A: Solution is written in below steps.

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