7. An elevator descends into a mine shaft at the rate of 6 m/min. If it begins to descend from 20 m above the ground, what will be its position after 45 minutes?
plz explain full details and solve this problem
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Answer:
340 meters.
Step-by-step explanation:
An elevator descends into mine shaft at the rate of 6 meter per minute.
But the elevator began to descend from 20 meters above.
So, 360 - 20= 340 meters.
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