Lucy's fish tank has 14 liters of water in it. she plans to add 5 liters per minute until the tank has at least 49 liters. what are the possible numbers of minutes
lucy could add water?
use t for the number of minutes.
write your answer as an inequality solved fort.

V = 14 + 5t

14 + 5t ≥ 49

Lucy has to add water at least for 7 minutes.

Step-by-step explanation:

There were 14 liters of water in Lucy's fish tank. She was about to add water at the rate of 5 liters per minute until there were at least 49 liters of water in the tank.

If t represents the number of minutes she adds water and V is the volume of water in liters in the fish tank, then we can write the equation as

V = 14 + 5t (1)

Now, this volume of water in the tank V must be at least 49 liters.

So, 14 + 5t ≥ 49 is the required inequality.

⇒ 5t ≥ 35

⇒ t ≥ 7

So, Lucy has to add water at least for 7 minutes. (Answer)

Inverse Operation- The operation that reverses the effect of another operation.

Hope this helps.