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Mathematics 7 Online
OpenStudy (hashwort):

A jewelry box with a square base is to be built with silver plated sides, nickel plated bottom and top, and a volume of 48 cm3. If nickel plating costs $1 per cm^2 and silver plating costs $2 per cm^2, find the dimensions of the box to minimize the cost of the materials.

OpenStudy (anonymous):

you need some variables here one for the length of the side of the base, another for the height what do you choose?

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