In order to change a fraction into a decimal you must divide the numerator by the decimal so divide 1 by 8 and so as you go through the equation you get a decimal number because 8 cannot go into 1 of course. 
Answer: 0.125 is the amount you ate in decimal form 
        
                    
             
        
        
        
The answer would be 483,972  miles = 55
        
                    
             
        
        
        
Answer:
x=3y−9
Step-by-step explanation:
 
        
             
        
        
        
Answer:
   x ≈ 42.3
Step-by-step explanation:
The law of cosines is given. For this problem, ...
   a = 25, b = 30, c = x , C = 100°
Filling in these values, we have ...
   x^2 = 25^2 +30^2 -2(25)(30)cos(100°)
   x^2 ≈ 1785.4723
   x ≈ √1785.4723 . . . . take the square root
   x ≈ 42.3