Total tickets sold :
14 + 6 = 20
fraction of child tickets sold = 14/20
then, we convert this fraction to %.
14/20 = 70/100
( multiply by 5 )
percentage = 70%
        
                    
             
        
        
        
Sin(4π/3)= -√3/2
cos(5π/6)= -√3/2
        
                    
             
        
        
        
Answer:
19
Step-by-step explanation:
7x-8=6x+11
-6x   -6x
x-8=11
   +8 +8
x=19