18    x
--- = ----
5      100
18×100 = 5×x
1800 = 5x
-------    ----
   5          5
360 = x
Hope this helps!!!
        
             
        
        
        
The angles opposite equal sides are also equal. The sum of angles in a triangle is 180. So 2x + 27 + 2x + 27 + 3x + 28 = 180.
7x + 82 = 180
7x = 98
x = 14
Now plug x into each angle to find their measures.
        
             
        
        
        
Answer:
Planet Ruba has 900,000 more aliens
Step-by-step explanation:
Please kindly see the attached file for more explanation