Question

A research team aboard an underwater research vessel descends 1,500 feet beneath the surface of the water.

They then rise 525 feet and descend again 350 feet. How far below the surface is the research team?
A. 775 feet.
B. 625 feet.
C. 1,175 feet.
D. 2,375 feet.

Answer 1

The research team is 1,325 feet below the surface, calculated by subtracting the ascent from the initial descent and adding the second descent.

Step-by-step explanation:

The research team's position below the surface can be determined by tracking their movements in terms of depth. Initially, they descend 1,500 feet. After rising 525 feet, their net depth decrease. But they descend again by 350 feet, adding to their previous net depth. To find the final position below the surface, we can calculate as follows:

Initial descent: 1,500 feet
Rising up: -525 feet
Second descent: +350 feet
Net descent: 1,500 - 525 + 350 = 1,325 feet below the surface

Therefore, the correct answer is not explicitly listed in the options, as the research team is 1,325 feet below the surface.