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A submarine changes its position by −7 meters every second.

What is the change in the submarine's position after 300 seconds?

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Respuesta :

the correct anwer is -21 and how i got that is by taking -7*300 to get -21 as my answer let me know if it helped any...
Since it says that it descended -7 after every second.  It then say how much will it be after 300 seconds.
So...  
-7 times 300 is 2100
so the position it will be at is -2100

Hope it helped!

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