Water flows from the bottom of a storage tank at a rate of r(t) = 200 − 4t liters per minute, where 0 ≤ t ≤ 50. find the amount
of water that flows from the tank during the first 35 minutes.
2 answers:
The answer for your problem is shown on the picture.
Answer:
The amount of water that flows from the tank during the first 35 minutes is 4550 liters.
Step-by-step explanation:
We know that the rate is given by
and the problem asks for the net change (<em>the amount of water</em>) for the first 35 minutes.
We can use the Net change theorem:
The integral of a rate of change is the net change:

Applying the above theorem we get

![\int _0^{35}200dt-\int _0^{35}4tdt\\\\\left[200t\right]^{35}_0-\left[\frac{t^2}{2}\right]^{35}_0\\\\7000-2450\\\\4550](https://tex.z-dn.net/?f=%5Cint%20_0%5E%7B35%7D200dt-%5Cint%20_0%5E%7B35%7D4tdt%5C%5C%5C%5C%5Cleft%5B200t%5Cright%5D%5E%7B35%7D_0-%5Cleft%5B%5Cfrac%7Bt%5E2%7D%7B2%7D%5Cright%5D%5E%7B35%7D_0%5C%5C%5C%5C7000-2450%5C%5C%5C%5C4550)
The amount of water that flows from the tank during the first 35 minutes is 4550 liters.
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