A Rectangular Box Is to Have a Square Base and a Volume

question 151

Short Answer

A rectangular box is to have a square base and a volume of 24 ft.³. If the material for the base costs 20 cent/square foot, the material for the sides costs 10 cent/square foot, and the material for the top costs 40 cent/square foot, determine the dimensions of the box that can be constructed at minimum cost.
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Definitions:

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