Answer:
1
Step-by-step explanation:
- KN = 3
 - IK = -2
 - 3 + -2 = 3 - 2
 - 3 - 2 = 1
 
I hope this helps!
 
        
             
        
        
        
Let
x--------> <span>the unknown scale size
we know that
N 1---------> 2.618
N 2---------> x
N 3---------> 1
N 4---------> 0.618
to obtain the size N 4 ----> multiply the size N 3 by 0.618
so
to obtain </span> the size N 2 ----> multiply the size N 1 by 0.618
size N 2=2.618*0.618------> 1.6179
x=1.618
the answer is
 the unknown scale size is 1.618
        
             
        
        
        
Substitute y = 3x + 15 to the equation -4x + 7y = 20:
-4x + 7(3x + 15) = 20          <em>use distributive property</em>
-4x + (7)(3x) + (7)(15) = 20
-4x + 21x + 105 = 20     <em>subtract 105 from both sides</em>
17x = -85     <em>divide both sides by 17</em>
x = -5
Substitute the value of x to the equation y = 3x + 15:
y = 3(-5) + 15
y = -15 + 15
y = 0
<h3>Answer: x = -5 and y = 0</h3>
 
        
             
        
        
        
Answer:
8j
Step-by-step explanation:
hope this helps!