Question

karen is drawing water out of her 30-gallon fish tank.the water is draining at a rate of 1/2 gallon per minute.At time t=0 minutes,karen start draining the full tank.Complete the table to Show the volume V of water in the tank at time t.

Answer 1

We need to complete the volume, V, of time 2, 3, and 4.

After 1 min, 1/2 gallon lost.

After 2 min, 1/2 * 2 = 1 gallon lost

After 3 min, 1/2 * 3 = 3/2 = 1 1/2 gallon lost

After 4 min, 1/2 * 4 = 2 gallon lost

Remaining volume [V row of the table]:

at 2 minutes = 30 - 1 = 29 gallons

at 3 minutes = 30 - 1 1/2 = 28 1/2 gallons

at 4 minutes = 30 - 2 = 28 gallons