Mystic3656 Mystic3656

10-10-2016
Mathematics

Answered

While returning to the glider port, Laura descended at a rate of 380 feet per second for 3 minutes. Calculate her change in altitude.

I don't know whether to do -380 x 3, or a positive 380.

Verified Answer :

Anonymous Anonymous

18-10-2016

To do this, descending would be decreasing, so use a negative sign. Then, calculate how many seconds are in 3 minutes: 3 X 60 = 180. Now, you multiply. -380 X 180 = -68400.

So therefore, in three minutes, Laura would've descended 68400 feet.
This means that the change in altitude is -68400 feet.

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