Let
x-------> the first number
y------> the second number
we know that


equation 

equation 
substitute equation 1 in equation 2

using a graph tool-----> to resolve the second order equation
see the attached figure
the solution is

 
        
                    
             
        
        
        
The miles per hour is 84 kilometers per 60 minutes (7:5 ratio) so if we take seven kilometers times the ratio 5/7 we get 5 minutes
        
             
        
        
        
Answer:
36
Step-by-step explanation:
First do -1 - 5, which is -6.
then square -6.
so 6 x 6 equals 36.
 
        
             
        
        
        
I really don’t know gang but be strong you can do it
        
                    
             
        
        
        
Answer:
read below explanation
Step-by-step explanation:
KEY= C;CAROL T;TINO B;BAXTER
inches: C=90 T=90 B=90
Feet: C=7.5 T=7.5 B=7.5
Yards C=2.5 T=2.5 B=2.5