: A hiker starts his ascent at 50 feet below sea level. He ascends 1,200 feet. .......?

Question

: A hiker starts his ascent at 50 feet below sea level. He ascends 1,200 feet. Use addition to find his height above sea level.

50 + 1,200 = 1,250
50 + (–1,200) = –1,150
–50 + 1,200 = 1,250
–50 + 1,200 = 1,150

Answer 1

-50+1200=1150

Answer 2

I think that the distribution of the melting ice is very important for this problem. If one considers only the heat capacity of ice and the heat of fusion, the time required to melt all of the ice is on the order of 8000 years. Initially, most of the extra energy just goes into warming Antarctic ice from -30 C to 0 C. On this basis, one would expect a slow rate of sea level rise at early time and a very rapid rise in the last millennium. This simple model does not include the effects of ice transport, which would tend to make the curve closer to linear. I think that the current rate of sea level rise may be a spike in the base rate from the melting of small glaciers. After the small glaciers are gone, the rate of sea level increase may decrease, at least in the short term. Do small glaciers have enough volume to sustain the current rate of sea level rise for the next 100 years?

Answer 3

The last one sense he started below sea level you use negitives and when you add a negitive and a positive it's like subtracting so you would have an answer less than what you started with

Answer 4

50 + (-1200) = 1150

Answer 5

–50 + 1,200 = 1,150

Answer 6

–50 + 1,200 = 1,250

Answer 7

the last one

Answer 8

the last one easy

Answer 9

use a calculator