Problema Solution
When a popular running shoe is priced at $70, The Shoe House will sell 15 pairs each week. Using a survey, they have determined that for each decrease of $2 in price, 3 additional pairs will be sold each week. What selling price will give weekly revenue of $2,250?
Answer provided by our tutors
let 'x' represent the number of $2 discounts
2250 = (70-2n)*(15+3n)
solving for n we have the solution set {10, 20}
2*10 = 20
2*20 = 40
discounts of either $20 or $40 will given a weekly revenue of $2,250