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Sagot :
He starts at -184 ft (since he is below the surface) and then goes up + 53 ft putting him at -131 ft.
-184+53=-131
Then he goes down another -168 feet to -299 ft.
-131-168=-299
So, he is currently at -299ft, or 299 feet below the surface.
-184+53=-131
Then he goes down another -168 feet to -299 ft.
-131-168=-299
So, he is currently at -299ft, or 299 feet below the surface.
Given,
A miner is working 184 feet the the surface of the earth.
To get a tool , he climbs 53 feet.
And then descends 168 feet.
His current elevation below the surface of the earth
= (184 - 53) + 168
= 131 + 168
= 299 feet
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