Question

A submarine is exploring the Pacific Ocean. At 502.5 feet below sea level, the water temperature is 634°F. The submarine dives down 115 feet

deeper, and the water temperature drops by 24°F. What were the elevation and the water temperature after the submarine dove? Assume that
sea level is at 0 feet of elevation. Complete the steps below to solve the problem.
Part A
Write the submarine's Initial elevation as a rational number.

Answer 1

The submarine's initial elevation is 502.5 feet below sea level, which can be represented as a rational number:

Initial Elevation = -502.5 feet

Note the negative sign because the submarine is below sea level.

Explanation: