Answer:
x=  
32
7+  
3121
  
  
  
 ,  
32
7−  
3121
  
  
  
  
Step-by-step explanation:
h+16^2-8x-48=0
-7x+16x^2-48=0
x=  
32
7+  
3121
  
  
  
 ,  
32
7−  
3121
  
  
  
  
 
        
             
        
        
        
Answer:
12kg=7.68
1.5=87
Step-by-step explanation:
I found the cost per kg
 
        
             
        
        
        
We are given these three people age below:
- Jim's age
- Carla's age
- Tomy's age
We define the age of Jim as any variable, because the problem doesn't give any specific age. I will define Jim's age as x.
Next, Carla is 5 years older than Jim. That means if Carla is 5 years older, her age would be x+5.
Then Tomy is 6 years older than Carla. That means the age would be 6+(x+5).
The sum of their three ages is 31 years old. That means we add all these ages and equal to 31.

Combine like terms and solve for x.

Then we substitute the value of x in ages to find these three people ages.
- Jim's age = x = 5
- Carla's age = x+5 = 5+5 = 10
- Tomy's age = 6+(x+5) = 6+(5+5) = 6+10 = 16.
Answer
- Jim's age = 5
- Carla's age = 10
- Tomy's age = 16
 
        
             
        
        
        
Answer:
x = 4
y = 11
Step-by-step explanation:
Set  your formula as follow:
2x+3=3x-1 -> 2x+3-3x=-1  -> -x+3 = -1 -> -x=-4 -> x=4
now substitute x for 4 in the following 
y-2=2(4)+1 -> y-2=8+1 ->y-2 = 9y -> y=11