Let x = Parent's age now  y = son's age now
 
Then, x-5 = parent's age five years ago
         y-5 = son's age five years ago
 
      So, x-5 = 5(y-5)
 
           Simplify to get x - 5y = -20
 
Parent's age 8 years from now = x+8
Son's age 8 years from now = y+8
 
     So, x+8 = 3(y+8)
 
            Simplifying, we have x - 3y = 16
 
We have the system of equations:  x - 5y = -20
                                                   x - 3y = 16
 
Subtract the equations to obtain -2y = -36
 
                                                   y = 18
                                                   x = 70
 
Parent is 70 years old and the son is 18 years old.  
 
        
                    
             
        
        
        
Answer:
There was a %5 increase
Step-by-step explanation:
You just have to substract 65-60 and you get 5
 
        
             
        
        
        
Answer:
t=13
Step-by-step explanation:
the ratio of the shorter sides is t/4 and the ratio of the longer sides is 26/8 so t=26×4/8=104/8=13
 
        
                    
             
        
        
        
Answer:
the second and thrid one :)
Step-by-step explanation:
 
        
             
        
        
        
we know the blue and white paints are on a 1.5 : 5 ratio, thus, if we have a total of 16.25 gallons of paint to be split along that ratio, we can simply divide 16.25 by (1.5+5) and distribute accordingly.
