He distance from city a to city b is about 175175 mi by ferry. it takes 66 hr less to travel by the same ferry from city b to city c, a distance of about 7070 mi. what is the average rate of the fer

The average speed will be 2.54 Km/h

Explanation:

Given that

A to B

Distance = 175175 m=175.175 KM

B to C

Distance = 7070 m=7.07 Km

Lets take time taken from B to C is t then A to B will be t+66

We know that

Distance = velocity x time

175.175 =  V x (t+66)              1

7.070 = V x t                      2

From equation 1 and 2

t=2.77 hr

Now by putting the values in equation 2

7.07 = V x 2.77

V = 2.54 Km/h

So the average speed will be 2.54 Km/h

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000