Basics Of Engineering Economy
Basics Of Engineering Economy
2nd Edition
ISBN: 9780073376356
Author: Leland Blank, Anthony Tarquin
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 1, Problem 67P

(a):

To determine

Good option.

(b):

To determine

Another good option.

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A company manufactures dog leashes that sell for $20.97, including shipping and handling.  The monthly fixed costs (advertising, rent, etc.) are $23,202 and the variable costs (materials, shipping, etc.) are $9.21 per leash.  How many leashes must be produced and sold each month for the company to break even?
The council members of a small town have decided that the earth levee that protects the town from flooding should be rebuilt and strengthened. The town engineer estimates that the cost of the work at the end of the first year will be $68,000. He estimates that in subsequent years the annual repair costs will decline by $7000, making the second-year cost $61,000; the third-year $54,000, and so forth. The council members want to know what the equivalent present cost is for the first 5 years of repair work if interest is 6%.
Could you please use the first derivative for part (b), not the second derivative? Could you ensure that you use a table when comparing values when getting the profit maximising? Greatly Appreciated!!

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Basics Of Engineering Economy

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