Question

solve the word problem.

A submarine is floating 50m below sea level.

I)It goes down a further 380m to a point A. write down the depth of the point A below sea level.

II) from the point A, it rises 120m to another point B . what is the depth of B below sea level?
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Answer 1

Answer:

the depth of point A is 50 + 380

= 430m

the depth of point B is 430 - 120

= 310m

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Answer 2

Answer:

1) 380 + 50= 420

2) 420- 120= 300

Step-by-step explanation:

1) it is already at 50m below, and it futher goes down 380m , so we add 50 to 380 ,which is equal to point A.

2) point A is at 420m below from that it rose up by 120 m, so 420 - 120= 300 so point B is at 300m below