A rectangular storage tank with an open top is to have volume (20 m). The length of the base is twice the width, see the figure. The Material of the base costs (20 $) per square meter. The material of the sides costs (10 $) per square meter. Use Lagrange multiplier method to find the optimum dimensions of a tank that give the minimum cost.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.8: Linear Programming
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A rectangular storage tank with an open top is to have volume (20 m). The
length of the base is twice the width, see the figure. The Material of the base
costs (20 $) per square meter. The material of the sides costs (10 $) per
square meter. Use Lagrange multiplier method to find the optimum
dimensions of a tank that give the minimum cost.
2w
Ans./ 1 3.914
w x 1.957
h = 2.61
Transcribed Image Text:A rectangular storage tank with an open top is to have volume (20 m). The length of the base is twice the width, see the figure. The Material of the base costs (20 $) per square meter. The material of the sides costs (10 $) per square meter. Use Lagrange multiplier method to find the optimum dimensions of a tank that give the minimum cost. 2w Ans./ 1 3.914 w x 1.957 h = 2.61
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