Question 1178377
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Woofer Pet Foods produces a low-calorie dog food for overweight dogs. 
This product is made from beef products and grain. 
Each pound of beef costs $0.90, and each pound of grain costs $0.60. 
A pound of the dog food must contain at least 9 units of Vitamin 1 and 10 units of Vitamin 2. 
A pound of beef contains 10 units of Vitamin 1 and 12 units of Vitamin 2. 
A pound of grain contains 6 units of Vitamin 1 and 9 units of Vitamin 2. 
Formulate this as an LP problem to minimize the cost of the dog food. 
How many pounds of beef and grain should be included in each pound of dog food? 
What is the cost and vitamin content of the final product?
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In his post, @CPhill provides the answer  b= 0.00 (pounds of beef)  and   g = 1.00 (pounds of grain).


This solution does not satisfy the given constraints.


Concretely, it does not satisfy the constrain 12b + 9g >= 10.


I don't know, where the error is in his solution.


But I am 129% sure that his way of presenting the solution via Python code 
is wrong teaching methodology and has nothing in common with the standard teaching 
Linear Programming method.



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                Regarding the post by @CPhill . . . 



Keep in mind that @CPhill is a pseudonym for the Google artificial intelligence.


The artificial intelligence is like a baby now. It is in the experimental stage 
of development and can make mistakes and produce nonsense without any embarrassment.



                It has no feeling of shame - it is shameless.



This time, again,  it made an error.



Although the @CPhill' solution are copy-paste  Google  AI solutions,  there is one essential difference.


Every time,  Google  AI  makes a note at the end of its solutions that  Google  AI  is experimental
and can make errors/mistakes.


All @CPhill' solutions are copy-paste of  Google  AI  solutions, with one difference:
@PChill never makes this notice and never says that his solutions are copy-past that of Google.
So, he NEVER SAYS TRUTH.


Every time,  @CPhill embarrassed to tell the truth.

But I am not embarrassing to tell the truth,  as it is my duty at this forum.



And the last my comment.


When you obtain such posts from @CPhill,  remember,  that  NOBODY  is responsible for their correctness, 
until the specialists and experts will check and confirm their correctness.


Without it,  their reliability is  ZERO and their creadability is  ZERO,  too.



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        It is interesting to note,  that this genius  @CPhill even does not read 

        and does not check the solutions,  which he submits to this forum.


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