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andriy [413]
3 years ago
7

I WILL MARK BRAINLIEST!!!! An underground mine elevator descends 12% of the total depth every minute. The total depth of the ele

vator is 75 meters below the ground. How many meters below the ground is the elevator after 2 minutes? −18 meters −9 meters −4.5 meters −22.5 meters
Mathematics
2 answers:
JulijaS [17]3 years ago
6 0

Answer:

-18 meters

Step-by-step explanation:

Total depth = 75 meters

<u><em>1 Minute:</em></u>

=> -12% of 75

=>- \frac{12}{100} *75

=> -(3*3)

=> -9 meters

<u><em>After 2 minutes:</em></u>

=> 2(-9)

=> -18 meters

Dahasolnce [82]3 years ago
3 0

Answer:

after 1 Min it's -9

after 2 mins it's -1.08

Step-by-step explanation:

12% X 75 = 9

12% X 9 = 1.08

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