180 seconds is 3 minutes. If you divide 156 by 3, you will get 52. If you are looking for 2 minutes, you have to multiply 52 by 2. The answer is 104 revolutions in 2 minutes.
        
             
        
        
        
Answer:
It will take 0.75B hours for the return leg 
Step-by-step explanation:
Here, given that the first leg of the trip was for B hours at 3 miles per hour , we want to calculate the number of hours the return leg will take at 4 miles per hour given that it is the same distance.
Mathematically, we know that ;
Distance = speed * time 
So the distance taken on the first leg of the trip would be;
Distance = 3 miles per hour * B hours = 3B miles 
Now, this distance was traveled on the return leg also.
This means that the time taken here will be;
Time on return leg = distance/speed = 3B/4 = 0.75B hours 
 
        
             
        
        
        
Answer:
Is there a picture?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
0.4
Step-by-step explanation:
1/4 x 160 / 100