From 300 feet below sea level, Joshua took off in his helicopter and ascended 900 feet. Which integer represents Joshua's elevation now?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Old position = -300 feet below sea level

Ascend in position = 900 feet

Change in position is given by -300 + 900.

To find this, start with -300 and move 9 steps to the right as the gap between steps is 100.



After moving, we reach at 600, so -300 + 900 = 600 feet

Joshua is 600 feet above sea level.

Answered by  | 4th Jun, 2014, 03:23: PM