Answer:
15 pieces
Step-by-step explanation:
5/ (1/3) = 5*3 = 15
 
        
                    
             
        
        
        
Answer:
k =2.57
Step-by-step explanation:
3.1+k=5.67
Subtract 3.1 from each side
3.1-3.1+k=5.67-3.1
k =2.57
 
        
                    
             
        
        
        
Answer:
9x^4+21x+6=0
Step-by-step explanation:
( 3x^2)^2+7(3x +2) -8=0
((3^2)*(x^2)^2)+(7*3x)+(7*2)-8=0
9(x^4)+21x+14-8=0
9x^4+21x+6=0
 
        
             
        
        
        
Answer:each box cost =$3
Step-by-step explanation:
Amount of money Ms Hart has to spent on costume boxes=$40
Amount gotten as change after purchase=$4
 Amount actually used up buying costume boxes =$40-$4=36
Since she bought 12 boxes , each box cost =$36/ 12=$3
 
 
        
             
        
        
        
Answer:
The given equation is NOT justified.
Step-by-step explanation:
Here, the given equation is  =
   = 
Now, here Consider the left hand side and simplifying the left side by operating on the like terms, 
⇒ =
   = 
=
Here, Left side of equation  ≠ Right side of the equation 
Hence,  ≠
   ≠ 