Inequalities

Question

Leila's fish tank has
18
liters of water in it. She plans to add
5
liters per minute until the tank has more than
58
liters. What are the possible numbers of minutes Leila could add water?

Answer 1

Let x = minutes

 

Write an equation that represents the required amount of liters.

 

5x + 18 ≤ 58

 

 

Solve the inequality for x.

 

5x ≤ 40

 

 x ≤ 8

 

 

She can fill the tank up for no more than 8 minutes.