Question

Please I need help with this. Edward started his hike at an elevation of 115 feet below sea level. Throughout the hike he ascended 3,200 feet then descended 676 feet. How much did this elevation change?

Answer 1

-115 + 3200 = 3085

3085 - 676 = 2409

Answer 2

Answer: His elevation is changed by 2409 feet.

Explanation:

Since we have given that

Length of elevation below sea level = -115 feet

Length he ascended = (+) 3200 feet

Length he descended = (-) 676 feet

So, this elevation changes by

`-115+3200-676\\\\=2409\ feet`

Hence, his elevation is changed by 2409 feet.