Question

A submarine starts at 245 feet below sea level.It dives 249 feet before rising 407 feet.Find thecurrent depth ofthe submarine.

Answer 1

Answer:

Answer is 87.

Step-by-step explanation:

Pls.. thoroughly read the question in this question it is written that submarine starts at 245 feet and after that it dives 249 feet that means:

249 + 245 = 494

And after that it says that the submarine rise 407 feet that means:

494 - 407 = 87

Hence, proved.

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Answer 2

Solution :-

Let depth of submarine below sea level is is taken as negative .

So,

→ Submarine starts at = 245 feet below sea level = (-245) feet .

now,

→ Submarine dives = 249 feet = (-249) feet .

then,

→ Depth of submarine below sea level = (-245) + (-249) = (-494) feet .

now,

→ Submarine rise = 407 feet = (+) 407 feet .

therefore,

→ The current depth of the submarine = (-494) + 407 = (-87) feet .

Hence, The current depth of the submarine is 87 feet below sea level .

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