Wouldn't you just multiply this, which is 3x9 = 27
 
        
                    
             
        
        
        
Answer:
172 mph
Step-by-step explanation:
You're welcome :)
 
        
                    
             
        
        
        
Answer:
x = 9
Step-by-step explanation:
take -6 to the other side so you add it to 30 = 36
equation is now 4x = 36
divide 4/4 and 36/4
x = 9
 
        
             
        
        
        
#1 4/5x + 2/3x = 1 -4/15
22/15x = 11/15
x = 1/2
and can u explain what u mean by #2 and #3??