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Problem 66 Hard Difficulty

Average Cost A company's total cost for operating its two warehouses is
$$C(x, y)=\frac{1}{9} x^{2}+2 x+y^{2}+5 y+100$$
dollars, where $x$ represents the number of units stored at the first warehouse and $y$ represents the number of units stored at the second. Find the average cost to store a unit if the first warehouse has between 40 and 80 units, and the second has between 30 and 70 units. (Hint: Refer to Exercises $61-64 . )$


$\$ 3518$


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Video Transcript

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