Answer:
no
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Here is the way to get the answer
Step-by-step explanation:We use the formule: t=S/v. So:
+ t1= 160/100 = 8/5 hrs = 5760''
+ t2= 160/90 = 16/9 hrs = 6400''
=> t2-t1= 6400 - 5760 = 640'' = 10'40''
 
        
                    
             
        
        
        
1400 days = 56 days... 100 over 4 * 4/100*d=100 over 4 * 56 xd= 5600 over 4 d = 1400