It takes a thermal drill 13 minutes to bore a hole -39 feet from ground level into a glacier. What is the change in depth after one minute?

Question

It takes a thermal drill 13 minutes to bore a hole -39 feet from ground level into a glacier. What is the change in depth after one minute?

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Verity 4 years 2021-08-05T17:09:49+00:00 2 Answers 30 views 0

Answers ( )

  1. RuslanHeatt
    0
    2021-08-05T17:11:00+00:00
    Reply

    Answer:

    -3 feet

    Step-by-step explanation:

    Divide -39 by 13, since it takes 13 minutes to dig -39 feet:

    -39/13

    = -3

    So, the change in depth after one minute is -3 feet

  2. Farah
    0
    2021-08-05T17:11:28+00:00
    Reply

    Answer:

    3 feet

    Step-by-step explanation:

    39 divided by 13 = the unit rate per min.

    39 divided by 13 = 3

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