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June 6th, 2014, 10:47 AM   #1
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Minimum of a function?

A drilling 12 miles off the coast will be connected to a coastal refinery, 20 miles below the perforation line. The underwater pipeline cost $ $50.000 per mile. Whereas the land, cost $30.000 per mile. What is the combination of the two types of products that will provide the least expensive connection?

Last edited by condemath2; June 6th, 2014 at 10:51 AM.
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June 6th, 2014, 05:13 PM   #2
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Do a search for "pipeline" in the forum. There's a few threads with puzzles like this.
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