word problem

Question

The surface of the dead sea is approximately 408 meters below sea level. Its greatest depth is 330 meter. I n contrast Mt.Everest reaches a height of 8850 meter. What is the difference in elevation between the summit of Mt.Everest and the bottom of the dead sea?

Answer 1

Let the mean sea level = 0 meters

 

     Dead Sea Bottom = 0 - 408 - 330 = 0 - 738 = -738 meters

     Everest Summit = 0 + 8850 = 8850 meters

 

The difference (subtraction) in elevation is:

 

     Everest - Dead Sea = 8850 - (-738) = 8850 + 738 = _____?