# 3) You are constructing a 12 cubic feet box that is open at the top. The...

###### Question:

3) You are constructing a 12 cubic feet box that is open at the top. The material used to construct the bottom costs $3 per square foot and the material used to construct the sides is$1 per square foot. What dimensions should you use to minimize the cost of the materials? Set up and solve using the LaGrange method.

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