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Answer 1 · 2017-09-26T20:29:51

$0.2$ $0.2$ gallons per minute

Since the container is leaking at a constant rate and we know what the initial volume and final volume is, we can then find the change in volume.

$DeltaV = V_"final" -V_"intial"$ .
$DeltaV = 3$ gal $-5$ gal.
$DeltaV = -2$ gal

The negative symbol indicates that the volume of water is getting less.

Now we also know the time it takes to leak 2 gallons which is 10 minutes.

The rate is simply $(deltaV) / (deltat)$

So our $delta t$ is 10 minutes

Substituting the values into the rate equation

$2 / 10$ gallons per minute
or
$0.2$ gallons per minute