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An underground mine elevator descends 12% of the total depth every minute. The total depth of the elevator is 75 meters below the ground. How many meters below the ground is the elevator after 2 minutes?
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An underground mine elevator descends 12% of the total depth every minute. The total depth of the elevator is 75 meters below the ground. How many meters below the ground is the elevator after 2 minutes? A: -18 meters B: -9 meters C: -4.5 meters D: -22.5 meters

User Jmgomez
by
8.4k points

2 Answers

2 votes

Answer:

A: -18 meters 0w0

User Mustafa Kemal
by
8.4k points
3 votes
75/100 = 0.75

--------------------

12 x 0.75 = 9

* The mine elevator travels a
distance of 9 metres per minute.

---------------------

After 2 minutes, the mine elevator
would've travelled 18 metres,
therefore your answer is:

A: -18 metres
User Pham Trung
by
7.7k points
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