Respuesta :

nandhini123

Answer:

To bring the submarine back to the sea level, it have to move 578 feet upwards

Step-by-step explanation:

Given:

Initially the depth the submarine dives  =  657 feet below sea

The height the submarine moves up =  79 feet

To Find :

Change in its depth required to bring the submarine back to the sea level  = ?

Solution :

In initially the Submarine will be at the depth of  657 feet below sea

when it goes up, the the depth reduces

657 - 79  = 578 feet

Now the submarine will be the depth of  578 feet

Now the submarine have to move  578 feet upwards to reach the sea level

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