Hi,, Until now didn\'t get the correct answer for both of these, Please help Q1)

Question

Hi,,

Until now didn't get the correct answer for both of these, Please help

Q1) A manufacturer is planning to sell a new product at the price of $230 per unit and estimates that if x thousand dollars is spent on development and y thousand dollars is spent on promotion, consumers will buy approximately [(350y)/(y+2)] + [(50x)/(x+3)] units of the product. If manufacturing costs $130 per unit, how much should the manufacturer spend on development and how much on promotion to generate the largest possible profit from the sale of this product?

Promotion: $

Development: $

Explanation / Answer

The profit will be maximum when y/(y+2) = x/(x+3)

then 3y = 2x

and x + y = 130 solve the 2 equations

so x = $78 and y = $52

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