Question

7. The top of a mountain is 1240 feet above sea level. The bottom of its valley is 620feet below sea level. What is the distance between the top of the mountain and the bottom of the valley?

Answer 1

To answer this question, we can graph the situation as follows:

We can find the distance between the top of a mountain and the bottom of its valley subtracting both numbers. Since we have integers of different signs, we can proceed as follows:

`\begin{gathered} D=1240ft-(-620ft) \\ D=1240ft+620ft \\ D=1860ft \end{gathered}`

We subtracted the lowest point from the highest point.

In summary, therefore, we have that the distance between the top of the mountain and the bottom of the valley is 1860ft.