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September 18, 2014

September 18, 2014

Posted by **Melissa** on Monday, October 17, 2011 at 10:31pm.

a) determine the max profit the company can make

b)Determine the amount spent on advertising that will result in the max profit

c)What amount must be spent on advertising to obtain a profit of at least $4 000 000

- Math( help please ! ) -
**Reiny**, Tuesday, October 18, 2011 at 12:00amp(x) = -5x^2 + 400x - 2550

p'(x) = -10x + 400

= 0 for a max of p(x)

10x = 400

x = 40 -----> answer for b)

p(40) = -5(40^2) + 400(40) - 2550 = 5450 -- > a)

for c)

solve

4000 = -5x^2 + 400x - 2550

- Math( help please ! ) -
**Sharlene**, Sunday, July 7, 2013 at 5:11pma. Complete the square.

-5x^2 + 400x - 2550

= -5(x^2 - 80x) - 2550

= -5(x^2 - 80x + 1600 - 1600) - 2550

= -5(x + 40)^2 + 8000 - 2550

= -5(x + 40)^2 + 5450

5450 x 1000 = $5,450,000

b. x = 40

40 x 1000 = $40000

c. Between $22 971 & 57 029

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