Problema Solution
A person notices that the number of oil filter wrenches n that he sells at his hardware store each week is related to the price p (in dollars) by the model, n=-p^2-5p+384. What should the person charge for the oil wrench if he wants to sell 300 per week?
Answer provided by our tutors
'n' oil wrenches, solve for 'p dollars' when n=300
300 = -p^2 -5p +384
solving for 'p' we have a positive value p=7
the person should charge $7 per oil wrench in order to sell 300 per week