Answer:
13 hours
Explanation:
using the relationship between distance (D), speed( S) and time (T)
D = S × T
given he drove 715 miles in 11 hours
substitute values into the relationship and solve for S
715 = S × 11 ( divide both sides by 11 )
65 = S
he is travelling at a rate of 65 miles per hour
substitute D = 845 and S = 65 into the relationship and solve for T
845 = 65 × T ( divide both sides by 65 )
13 = T
it would take him 13 hours to drive 845 miles at 65 miles per hour