Question

Suppose we represent the distance above the ground by a positive integer and then
below the ground by a negative integer, then answer the following.
(i) An elevator descends into a mine shaft at the rate of 5 metre per minute. What will
be its position after one hour?
(ii) It begins to descend from 15 m above the ground. What will be its position after
45 minutes.
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Answer 1

Answer:

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Step-by-step explanation:

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