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.
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