2x + 3y = 45
x + y = 10......y = 10 - x
2x + 3(10 - x) = 45
2x + 30 - 3x = 45
-x + 30 = 45
-x = 45 - 30
-x = 15
x = -15 <====
and y = 25
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
<u>Perimeter is:</u>
- P = a + b + c
- P = 4x - 3 + x + 9 + 8 = 5x + 14
<u>Area is:</u>
- A = 1/2bh 
- A = 1/2*8*3x = 12x
Correct choice is A
 
        
                    
             
        
        
        
Answer: Angle N
Explanation: 
For triangle ABC, we refer to the middle angle, Angle B. 
For triangle MNP, we refer to its middle angle, Angle N. 
Good luck! 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
First simplify the first term to get
10y^4 
then multiply 10y^4 by 4 square root 6y^3
40y would be all you needed to get answer
 
        
                    
             
        
        
        
Answer:
  
 
Step-by-step explanation:
Problem: 
  The possible values of x in the equation (60)x = 1;
 Solution: 
Such a problem like this in which the highest power of the unknown is 1 will have just one solution. 
        60x  = 1 
To solve this, we take the multiplicative inverse of 60;
    the multiplicative inverse of 60 =  
 
    Use this inverse to multiply both sides of the expression; 
           
  60x  = 1 x
  60x  = 1 x  
 
                    x  = 