Sagot :
Answer:
7.5hrs
Step-by-step explanation:
Speed = Distance / Time
D = S x T = (60km/hr)(10hrs) = 600km
If she is to travel the same route, she will travel the same dustance of 600km. But if her speed is at 80km/hr...
T = D / S = 600 / 80 = 7.5hrs