Question

A submarine start at 135 feet below sea level .it dives 239 feet before rising 307 feet.represent the current depth of the submarine as an integer

Answer 1

Answer:

67 feet

Step-by-step explanation:

135+239

=374 feet

374-307

=67 feet

Answer 2

The current depth of the submarine represented as an integer is -67 feet.

Given,

A submarine starts at 135 feet below sea level,

Dives 239 feet, then rises 307 feet.

To find,

Represent the current situation as an integer.

Solution,

Here, it can be seen that a submarine is given to be 135 feet below sea level. It dives 239 feet and then rises 307 feet.

We know that,

the levels represented above the sea level, that is, when moving up, are taken to be positive,

while those below, that is, moving downwards, are taken as negative.

So, as the submarine starts below sea level already, we can write,

initial position = -135 feet.

It dives, which means it further moves down (239 feet). So, its position now will be

= -135 - 239

= -374 feet.

In the next step, the submarine rises by 307 feet. It will be taken (+), as it has moved upward.

So, the current position of the submarine

= -374 + 307

= -67 feet.

As we can see that the current position turned out to be negative.

It implies that the submarine is still below sea level.

Therefore, the current depth of the submarine represented as an integer is -67 feet.

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