Answered: 8. An oil company bores a hole 120 m…

8. An oil company bores a hole 120 m deep. Esti- mate the cost of boring if the cost is £70 for drilling the first metre with an increase in cost of £3 per metre for each succeeding metre.

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter61: Areas Of Circles, Sectors, And Segments

Section: Chapter Questions

Problem 50A

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26.8) Arithmetic progressions

8. An oil company bores a hole 120 m deep. Esti-
mate the cost of boring if the cost is £70 for
drilling the first metre with an increase in cost
of £3 per metre for each succeeding metre.

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ISBN:

9781337798310

Author:

Peterson, John.

Publisher:

Cengage Learning,