For this case we have that by definition, the time is given by:
[tex]t = \frac {d} {v}[/tex]
Where,
Therefore, substituting values we have that:
[tex]t = \frac {385} {48}[/tex]
Then, the time is given by:
[tex]t = 8.02 hours[/tex]
Answer:
The family will be traveling about:
[tex]t = 8.02\ hours[/tex]