Let "x" represent the time it takes to fill the pool using Jannes hose.
With Rodrigo's hose it takes twice as fast as Jannes, this means that it fills the pool in half the time you han symbolize this as x divided two or x multiplied by 1/2
If it takes 5 hours to fill the pool with Jannes hose (x=5)
Then with Rodrigo's hose it will take
[tex]\frac{1}{2}x=\frac{1}{2}\cdot5=2.5[/tex]
It takes two and a half hour to fill the swimming pool using Rodrigo's hose alone.
