SOLUTION: The question is:
The total cost (In dollars) for a company to manufacture and sell x items per week is C=60x + 800. Whereas the revenue brought in by selling all items is R=1
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Question 1121113: The question is:
The total cost (In dollars) for a company to manufacture and sell x items per week is C=60x + 800. Whereas the revenue brought in by selling all items is R=115x - 0.5x^2. How many items must be sold to obtain a weekly profit of $400?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
\ =\ R(x)\ -\ C(x))
\ =\ (115x\ -\ 0.5x^2)\ -\(60x\ +\ 800))
\ =\ -0.5x^2\ +\ 55x\ -\ 800)
We need \ =\ 400)
so:
Put the quadratic into standard form and solve for 
. Hint: This question has two distinct answers.
John
My calculator said it, I believe it, that settles it
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