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.

Step-by-step 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 :-

$-500\times5=-2500\text{ feet}$

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