Question

An average swimming pool contains 19200 gallons of water. The pool needs drained at the end of the summer. Water drains from the pool at the rate of 12 gallons per

Which equation can be used to find the volume, V, of the water in the pool t minutes after draining begins?


A- V = 12t - 19200
B- V= 19200- 12/60t
C- V= 12/60t- 19200
D= V= 19200- 12t

PLEASE HELP ASAP
PLEASE EXPLAIN HOW YOU GOT THE ANSWER

Answer 1

The answer is

D. V= 19200- 12t

Explanation:

in this problem, we already know that the pool contains 19200 gallons of water

and the pool is draining at 12 gallons per minutes, hence the volume is decreasing at that rate

Therefore for t minutes it will decrease by 12t

hence the volume after t minutes will be

V= 19200-12t