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?



y = 2x + 90





y = 90x - 2





y = 90 - 2x





y = 2x - 90

Answer 1

y = 90 - 2x

This should be the correct answer

Answer 2

Your answer is y = 90 - 2x

Hope this helps.