Respuesta :

Answer:

3.5 hours.

Step-by-step explanation:

d = r * t

d = distance

r = number of miles per hour

t = time

Givens

d = 168

r = 48 miles / hour

t = ?

Solution

t = d / r

t = 168 / 48

t = 3 1/2 hours or 3.5 hours or 3 hours and 30 minutes.