Answer:d=0.8x+1
Step-by-step explanation:
To solve 0.5(2d-6)=0.2(4x-10)
Open the brackets
We get
d-3=0.8x-2
To make d the subject of formular 
d=0.8x-2+3
d=0.8x+1
 
        
             
        
        
        
There is no simpler ratio then 1:4. So the answer is 1:4.
        
             
        
        
        
Answer:
Exact Form:
√
61  (square root )
Decimal Form:
7.81024967
…
Step-by-step explanation:
Use the distance formula to determine the distance between two points.
 
        
             
        
        
        
Answer:
Substituting for a Variable
If you know the value that the variable is equal to, you can substitute that value in for the variable in the expression! Let's look at an example. Since we know that x=5, we can directly substitute or replace the x in the expression x+3 with a 5 to solve for y!
Step-by-step explanation:
 I hope this kinda helps