7. An elevator descends into a mine shaft at the rate of 6 m/min. What will be its position after one hour? If it begins to descend from 20 m above the ground, what will be its 20 position after 45 minutes?
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An elevator descends into mine shaft at the rate of 6 meter per minute. So, for 1 min elevator descends 6 meters. ... 360 - 20= " 340 meters."
Step-by-step explanation:
the answer is 340 metres
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