Answer:
x = -5/2
Step-by-step explanation:
4−(2x+4)=5
Distribute the minus sign
4 - 2x -4 = 5
-2x =5
Divide by -2
-2x/-2 = 5/-2
x = -5/2
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:
36
Step-by-step explanation:
45*(9/5)=81(The whole score)
81-45=36(the second half score)
 
        
                    
             
        
        
        
Answer:
Option A.) 20 pounds of walnuts and 25 pounds of almonds is correct.
Step-by-step explanation:
i) let x be the the number of pounds of almonds
ii) let y be the number of pounds of walnuts
iii) therefore x + y = 45 pounds of the mixture
iv) 1.2x + 0.75y = 1.00  45 = 45
 45 = 45
v) Multipling equation in iv) by 4 we get
   4.8x + 3y = 180
vi) multiplying equation in iii) by 3 we get 
      3x + 3y = 135
vii) subtracting equation vi) from equation v)  we get 1.8x = 45 
ix) therefore we get x = 45/1.8 = 25 pounds of almonds
x) therefore 25 + y = 45  .... substituting value of x from ix) in iii) we get 
    therefore y = 20 pounds of walnuts
Therefore option A.) 20 pounds of walnuts and 25 pounds of almonds is correct.