Question

The hot air balloon moves closer to sea level at a rate of 100 feet per minute.

At the same time, the submarine moves closer to sea level at a rate of 40 feet per minute. 1,800 feet Above Sea Level Sea Level 94 820 feet Below Sea Level Question: What is the vertical distance between the hot air balloon and submarine after 15 minutes?​

Answer 1

The hot air balloon descends at a rate of 100 feet per minute, so after 15 minutes, it would have descended:
100 feet/minute * 15 minutes = 1500 feet

The submarine ascends at a rate of 40 feet per minute, so after 15 minutes, it would have ascended:
40 feet/minute * 15 minutes = 600 feet

Now, to find the vertical distance between them, you subtract the depth of the submarine from the height of the hot air balloon:

1500 feet (balloon's descent) - 600 feet (submarine's ascent) = 900 feet

So, after 15 minutes, the vertical distance between the hot air balloon and the submarine is 900 FEET.