Answer:
2 h 40 min
Step-by-step explanation:
Gallons = number of hours × gallons per hour
[tex]\text{Number of hours} = \dfrac{\text{gallons}}{\text{gallons per hour}}[/tex]
(a) Wilma's pool
[tex]\text{Number of hours} = \dfrac{8000}{600} = \text{13.33 h}[/tex]
(b) Betty's pool
[tex]\text{Number of hours} = \dfrac{8000}{500} = \text{16.00 h}[/tex]
(c) The difference
16.00 - 13.33 = 2.67 h or 2 h 40 min
It takes 2 h 40 min longer to fill Betty's pool than Wilma's.
