Question

The distance above the ground is represented by positive integers and the
distance below the ground by negative integers. An elevator begins to
descend from 15 m above the ground at a rate of 5 m per minute. What
will be its position after 45 minutes?

Answer 1

Answer:

in 3 minutes, the elevator will reach 0 m above the ground. 42×5= 210 m

it will be at -210 m

Step-by-step explanation:

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Answer 2

If ground level is zero

original position = 15 m

the elevator moves 5 m in every 1 minute

1 min=5 m

45 min= 45*5=225 m

Final position=225-15=210 m

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