Answer:
25%
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
≈ 
 %
%
Step-by-step explanation:
The person will wait for no more than 20 minutes if they arrive when the bus is going to stop in 20 minutes, which means that they must arrive 25 minutes after the previous bus stops. So the probability that the person will not wait for more than 20 minutes will be  which is about 44.4%.
 which is about 44.4%.
 
        
             
        
        
        
Answer:
 your teacher is crazy about she think you are smart
 
        
                    
             
        
        
        
Minus 1/4 on both sides to get s= 12 1/4
Hope I'm the brainliest for this question!
        
                    
             
        
        
        
Answer:
ab=1/12
Step-by-step explanation:
1/(4ab)+1/(3ab)-1/(2ab)=12
1/(ab)*[1/4+1/3-1/2]=1/12
1/(12ab)=1/12
ab=1