Posted by **Nialleen** on Tuesday, July 22, 2014 at 6:44am.

A doll can make a Jennifer doll at a cost of $35 per doll. if the selling price of the doll is x pesos and the number of dolls sold per month is 500-x.

a. express the monthly profit in dollars as a function of x.

b. if the selling price of the doll is $85, determine the monthly profit. use the result in no.1

- advance algebra -
**Steve**, Tuesday, July 22, 2014 at 10:56am
profit = revenue - cost

revenue = price * quantity. So,

p(x) = x(500-x)-35x

Now just plug in your data

- advance algebra - oops -
**Steve**, Tuesday, July 22, 2014 at 10:58am
Oops mixed up price and quantity

p(x) = x(500-x)-35(500-x)

= (x-35)(500-x)

assuming no extra dolls are made...

- advance algebra -
**nialleen**, Wednesday, July 23, 2014 at 6:36am
thanks... :)

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