Question

Patti's Pet Palace has an 80-gallon fish tank. When it needs to be cleaned, it can be drained at a rate of 3 gallons per minute. Assuming the tank was full, and x represents the number of minutes the tank has been draining, which of the following equations represents the amount of water in the tank after x minutes?
A) y = 80x - 3
B) y = 80 - 3x
C) y = 3x + 80
D) y = 3x - 80

Answer 1

B or D