A water well drilling rig has dug to a height of - 60 meters after one full day of continuous use. a) Assuming the rig drilled at a constant rate, what was the height of the drill after 15 hours?

Question

Mathematics

Marin Page

22 May, 10:11

A water well drilling rig has dug to a height of - 60 meters after one full day of continuous use. a) Assuming the rig drilled at a constant rate, what was the height of the drill after 15 hours?

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Brynlee · Answer 1

-37.5 m

Step-by-step explanation:

If we assume that "one full day" is 24 hours, then 15 hours represents the fraction 15/24 of a day. Since the drilling rate was constant, and was presumed to start from a height of 0, the height after 15 hours is that fraction of the day's work:

... (15/24) * (-60 m) = - 37.5 m