Question

a mountain decends a mountain for 5 hours. On average, she climbs down 500 feet each hour. what is her change in elevation after 5 hours?

Answer 1

I 5 hours she will be 2,500 feet down

Answer 2

Answer: -2500 feet or 2500 feet down.

Explanation:

Given : A mountain descends a mountain for 5 hours.

On average, she climbs down 500 feet each hour.

Since , we use negative sign to represent down or descend in quantity in integers.

Thus IN INEGERS, on average, she climbs -500 feet each hour.

Now, her change in elevation after 5 hours will be :-

`-500*5=-2500\text{ feet}`

Hence, her change in elevation after 5 hours= -2500 feet.