That's false. Take the numbers 1, 3, and 5.
Let a = 1, b = 3, and c = 5.
ab + bc = ac
3 + 15 = 5
18 ≠ 5
Since 18 does not equal 5, this is false. If you were to use the distributive property on ab + bc = ac, you would get
b(a+c) = ac, which doesn't even make sense.
Have a nice day! :)
        
             
        
        
        
320 because you added the two numbers to get the total.
        
             
        
        
        
Answer:
x = - 4    y = - 4
Step-by-step explanation:
x+y= - 8 
-9x-6y=60
First, solve for x in the first equation:
x+y = - 8       Subtract y from both sides
x + y - y = -8 - y    y cancels on the left
x = - 8 - y
Now plug in what you found for x into the 2nd equation and solve for y.
- 9x - 6y = 60
-9(- 8 - y) - 6y = 60   Multiply out
72 + 9y - 6y = 60
72 + 3y = 60  Subtract 72 from both sides
72 - 72 + 3y = 60 - 72    72 cancels on the left
3y = - 12     Divie both sides by 3
3y/3 = -12/3     3 cancels on the left because 3/3 = 1
y = -4
Now plug your answer for y back into the first equation to get x.
x + y = -8
x + (-4) = - 8  Add 4 to each side
x - 4 + 4 = - 8 + 4   4 cancels on the left
x = -4
x = - 4 and y = - 4
 
        
             
        
        
        
4+4+4+4+4+4=24yd is the perimeter. 
        
             
        
        
        
Value of expression  is 22 .
 is 22 .
<u>Step-by-step explanation:</u>
Here we have the following expression to solve :
8÷2*5+(6-4)
⇒ 
⇒  
 
But 8 = 4(2) , So
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⇒ 
⇒ 
⇒ 
⇒ 
Therefore, Value of expression  is 22 .
 is 22 .