Answer:

Step-by-step explanation:
If x is inversely porportionaly to y, then for some constant k, 

Since y is 4 when x = 18, k is equal to 4*18=72, so the equation is:

 
        
             
        
        
        
Answer:
it should take her 45 minutes to run 9 laps
Step-by-step explanation:
40/8 = 5
9*5 = 45
 
        
                    
             
        
        
        
How do you become an administrator?
I think answering a lot of questions and dont get warnings
 
        
             
        
        
        
Answer:
55miles per hour
Step-by-step explanation:
 
        
             
        
        
        
14.29 * .0725 = 1.04
1.04 * 3 = 3.12