Multiple Choice
A microbiologist must prepare a culture medium in which to grow a certain type of bacteria.The percent of salt contained in this medium is given by
Where x,y,and z are the nutrient solutions to be mixed in the medium.For the bacteria to grow,the medium must be 13% salt.Nutrient solutions x,y,and z cost $1,$2,and $3 per liter,respectively.How much of each nutrient solution should be used to minimize the cost of the culture medium?
A) 
B) 
C) 
D) 
E) 
Correct Answer:

Verified
Correct Answer:
Verified
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