Answer:
Time taken by the un powered raft to cover this distance is T = 192.12 hr
Step-by-step explanation:
Let speed of boat = u 
Speed of current = v 
Let distance between A & B = 100 km
Time taken in downstream = 32 hours


u + v = 3.125 ------ (1)
Time taken in upstream = 48 hours


u - v = 2.084 ------- (2)
By solving equation (1) & (2)
u = 2.6045 
v = 0.5205 
Now the time taken by the un powered raft to cover this distance

Because un powered raft travel with the speed of the current.

T = 192.12 hr
Therefore the  time taken by the un powered raft to cover this distance is 
T = 192.12 hr
 
 
        
                    
             
        
        
        
Answer:
I need more information, meaning his formula.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Area of circle = 78.5 in²
πr² = 78.5
3.14*r² = 78.5

r =  5 in
 
        
                    
             
        
        
        
Increments of 100,000. 
0 - 1,000,000
Essentially 0, 100,000, 200,000, 300,000, etc.
        
             
        
        
        
Answer:22
Step-by-step explanation: divide 46.2 by 14 to get 3.3 then divide 72.6 by 3.3 easy way but there is a harder one I just forgot lol