College

We appreciate your visit to A water well drilling rig has dug to a height of 15 feet in three hours If the rig has been running constantly and is. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

A water well drilling rig has dug to a height of -15 feet in three hours. If the rig has been running constantly and is currently at a height of -192.5 feet, for how long has the rig been running?

A. 22.25 hours
B. 97.4 hours
C. 38.5 hours
D. 12.8 hours

Answer :

The correct answer is option 3. 38.5 hours.

Following is given:

  1. The rig dug to -15 feet in 3 hours.
  2. The rig is currently at -192.5 feet.

First, calculating the rate at which the rig is digging:

[tex]Rate = \frac{Depth}{time} = \frac{-15\ feet}{\ 3\ hours} = -5\ feet\ per\ hour[/tex]

Next, using this rate to figure out the total time for the rig to reach -192.5 feet. Setting up the equation:

[tex]Total\ time = \frac{Current\ Depth}{Rate} = \frac{-192.5\ feet}{-5\ feet\ per\ hour}[/tex]

Solving this,

[tex]Total\ time = \frac{-192.5}{-5} = \frac{192.5}{5} = 38.5\ hours[/tex]

Thus, the rig has been running for 38.5 hours.

Thanks for taking the time to read A water well drilling rig has dug to a height of 15 feet in three hours If the rig has been running constantly and is. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada

Final answer:

The drilling rig has been running for 41.5 hours.

Explanation:

To determine how long the rig has been running, we need to find the time it took for the rig to drill the additional depth of 192.5 - (-15) = 207.5 feet.

The rig drilled 15 feet in 3 hours, so the rig drills at a rate of 15/3 = 5 feet per hour.

Therefore, the rig has been running for 207.5/5 = 41.5 hours.