Answer:
Kylie's grandfather is 73 years old.
Step-by-step explanation:
Let the first digit in Kylie's grandfather's age be x, which is the age of Isaac
Let the second digit in Kylie's grandfather's age be y, which is the age of Kendra.
Therefore from the given information we can say that
(10x + y) + x + y = 83
therefore 11x + 2y = 83
Let us take x  = 7 then we get  77 + 2y = 83  y = 3
 y = 3
Therefore we can say Issac's age is 7
and Kendra's age is 3
and the age of Kylie's grandfather is 73.
 
        
             
        
        
        
Mean = 15 1/3
Median = 15
Mode = 14,16
Range = 6
        
             
        
        
        
Answer: 54
Step-by-step explanation:
 
        
                    
             
        
        
        
3<9h I hope this helps you
        
                    
             
        
        
        
First solve the length of side BC, CD, EF and FA
 
Since BC = CD = sqrt( 10^2 + 10^2)
BC = CD = 14.1421
 
FA = EF = sqrt(10^2 + 20^2)
= 23.3607
 
So the perimeter = 10 + 10 + 14.1421 + 14.1421 + 23.3607
= 93
The area is made up be triangle FAE, rectangle ABDE and
triangle BCD
A = 0.5(20)(20) + (10)(20) + 0.5(20)(10)
<span>A = 500 sq units</span>