Final answer:
Jaime lost 2,150 feet in elevation on day 3.
Step-by-step explanation:
To calculate the amount of elevation Jaime lost on day 3, we need to find the difference between the elevations at the end of day 2 and at the end of day 3. At the end of day 2, Jaime had gained 2,150 feet in elevation. Since the shoreline on the other side of the island is also at an elevation of 0, the elevation at the end of day 3 is also 0. Therefore, the amount of elevation Jaime lost on day 3 is 2,150 feet.