Question

Patti's Pet Palace has a 90-gallon fish tank. When it needs to be cleaned, it can be drained at a rate of 2 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?

Answer 1

y=90-2x

Your Welcome! :D

Answer 2

You would have 90 cause the tank is full then you would subtract that from 2x because 2 gallons drain per minute so your answer is 90-2x