The design department of a shipping company is constructing a box in the fo of a rectangular prism. The base length is twice the base width. The mat to build the top and the bottom costs $9 / m². The material to build the sides costs $6 / m². The required volume is 70 m³. All dimensions (length, width and height) must be at least one metre long. Determine the dimensions of the box (to the nearest cm) that will minimize the production cost. What is the minimum cost?

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter59: Areas Of Rectangles, Parallelograms, And Trapezoids
Section: Chapter Questions
Problem 79A
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The design department of a shipping company is constructing a box in the fo
of a rectangular prism. The base length is twice the base width. The mat
to build the top and the bottom costs $9 / m². The material to build the sides
costs $6 / m?. The required volume is 70 m³. All dimensions (length, width
and height) must be at least one metre long.
Determine the dimensions of the box (to the nearest cm) that will minimize
the production cost. What is the minimum cost?
Transcribed Image Text:The design department of a shipping company is constructing a box in the fo of a rectangular prism. The base length is twice the base width. The mat to build the top and the bottom costs $9 / m². The material to build the sides costs $6 / m?. The required volume is 70 m³. All dimensions (length, width and height) must be at least one metre long. Determine the dimensions of the box (to the nearest cm) that will minimize the production cost. What is the minimum cost?
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