Question

What is the change in elevation from 134 feet below sea level to 29 feet above sea level?

Answer 1

Subtract (final - initial) heights, and regard elevation below sea level as negative.
29 - (-134) = 29 + 134 = 163 feet change in elevation

Answer 2

Change of elevation = 163.

Explanation:

Given : 134 feet below sea level to 29 feet above sea level?

To find : What is the change in elevation.

Solution : We have given

Below sea level = 134 feet .

Above sea level = 29 feet.

Change of elevation = Above level - below level.

We use positive sign for above level : + 29 feet.

We use negative sign for above level : -134 feet.

Change of elevation = 29 - (-134).

Change of elevation = 29 + 134).

Change of elevation = 163.

Therefore, Change of elevation = 163.