Rachel's fish tank has 16 liters of water in it. She plans to add 6 liters per minute until the tank has more than 88 liters. What are the possible numbers of minutes Rachel could add water?

Use t for the number of minutes.
Write your answer as an inequality solved for t.

1 answer

The total amount of water in the tank after t minutes is given by 16 + 6t.
We want this amount to be greater than 88 liters, so we have the inequality:
16 + 6t > 88

Solving for t:
6t > 72
t > 12

Therefore, Rachel could add water for more than 12 minutes to have more than 88 liters in the tank.