Hello,
Your answers and explanations are below.
6 - 5xy
5 times the product of x and y. The product of x and y means to multiply. That is where we get this: xy. 5 times that product is where we add 5 to it and get this: 5xy.
7 - 4x
We get this because we know he gets $4 an hour. We just do not know how many hours he babysat. The hours is X and we multiply that by 4.
8 - 5.5
Take 8.3 and subtract 2.8 to find x. Once we do that we get 5.5, and that is X.
9 - We can't see the problem. It's cut off
Good Luck,
- I.A. -
 
        
             
        
        
        
Answer:
3*(5*x-7)-(15*x-21)=0 
Step-by-step explanation:
3 • (5x - 7) -  (15x - 21)  = 0 
Step  2  :
Equation at the end of step  2  :
  0  = 0 
Step  3  :
Equations which are always true :
 
        
             
        
        
        
Step-by-step explanation:
x- red candy
y- blue candy
x + y = 11
1.29x + .79y = 11.19
129x +79y = 1119
-129x -129y = -1419
-50y = -300
y = 6 lbs. blue
x + 6 = 11
x = 5 lbs. red
 
        
                    
             
        
        
        
Answer:
3 and 1/2
Step-by-step explanation: