A manafacturer knows that the number of items he can see each week, x, is relate to the price p of each item by the equation x=900 - 100p. What price should he

Question

charge for each item to have a weekly revenue of $1,800?

Answer 1

Some typing corrections:  manufacturer; related; sell (not see)

r(x), the revenue, is xp = p(900-100p) = -100p² + 900p

 

set the above quadratic r(x) = 1800 and solve for p.