a plane takes off and rises to an elevation of 2500 feet. during the next hour, it rises another 1200 feet and drops 800feet and decends 500 feet as it flies over the ocean. what is the elevation of the plane as it flies over the ocean?
To find the elevation of the plane as it flies over the ocean, we start with its initial elevation of 2500 feet.
After rising 1200 feet, the elevation becomes 2500 + 1200 = 3700 feet.
After dropping 800 feet, the elevation becomes 3700 - 800 = 2900 feet.
Finally, after descending 500 feet, the elevation becomes 2900 - 500 = 2400 feet.
Therefore, the elevation of the plane as it flies over the ocean is 2400 feet.