Question: MINIMIZING PACKAGING COSTS A rectangular box is to have a square base and a volume of 20 ft3. If the material for the base costs 30?/square foot, the material for the sides costs 10¢/square foot, and the material for the top costs 20?/square foot, determine the dimensions of the box that can be constructed at minimum cost. (Refer to the figure for Exercise.)
Exercise: MINIMIZING PACKAGING COSTS What are the dimensions of a closed rectangular box that has a square cross section, a capacity of 128 in.3 , and is constructed using the least amount of material?
