Answer: $8 chicken $5 duck
Step-by-step explanation:
50x+30y=550
x=8
y=5
400+150=550
 
        
                    
             
        
        
        
Answer:
 The density of the  bar of gold is  19.32 grams per cubic centimeter .
Step-by-step explanation:
Formula

As given
A bar of gold has a volume of 722 cubic centimeters and weighs 13.949 kilograms.
As 1 kilogram = 1000 gram
Than convert 13.949 kilograms into grams.
 13.949 kilograms = 13.949 × 1000 grams
                              = 13949 grams
Mass = 13949 grams
Volume = 722 cubic centimeter
As put in the formula

Density = 19.32 grams per cubic centimeter (Approx)
Therefore the density of the  bar of gold is  19.32 grams per cubic centimeter .
 
        
             
        
        
        
Answer:
Objective Function: P = 2x + 3y + z
Subject to Constraints:
3x + 2y ≤ 5
2x + y – z ≤ 13
z ≤ 4
x,y,z≥0
Step-by-step explanation:
 
        
             
        
        
        
10 >= 7 + 3x                                              -4x+9<=1 
-7 >= -7  - subtract 7                                       -9<=-9   - Subtract 9 
__________                                               ___________
3 >=3x  - divide by 3                                       -4x<=-8    - divide by -4 
x>=1                                                                      x<=2 
        
                    
             
        
        
        
Answer:
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