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A small candy shop is preparing for the holiday season. The owner must decide how many bags of deluxe mix and how many bags of standard mix of Peanut/Raisin Delite to put up. The deluxe mix has ⅔ pound raisins and ⅓ pound peanuts, and the standard mix has ½ pound raisins and ½ pound peanuts per bag. The shop has 90 pounds of raisins and 60 pounds of peanuts to work with.

Peanuts cost $.60 per pound and raisins cost $1.50 per pound. The deluxe mix will sell for $2.90 for a one-pound bag, and the standard mix will sell for $2.55 for a one-pound bag. The owner estimates that no more than 110 bags of one type can be sold.
a.
If the goal is to maximize profits, how many bags of each type should be prepared?
b.
What is the expected profit?

2 Answers

6 votes

Final answer:

To maximize profits, the candy shop should prepare 110 bags of the deluxe mix, which will consume most of the peanuts and raisins. Any remaining ingredients can be used to create more standard mix, with an estimated total profit of $211.

Step-by-step explanation:

Maximizing Profits for a Candy Shop During the Holiday Season

To maximize profits, we first need to calculate the potential profit per bag for both the deluxe mix and the standard mix. Given the costs of peanuts ($.60 per pound) and raisins ($1.50 per pound), the cost for producing a bag of deluxe mix is 2/3 * $1.50 + 1/3 * $.60 = $1.20. The profit for one bag of deluxe mix is $2.90 - $1.20 = $1.70. For the standard mix, the cost is 1/2 * $1.50 + 1/2 * $.60 = $1.05. The profit for one bag of standard mix is $2.55 - $1.05 = $1.50.

With the limitation of 90 pounds of raisins and 60 pounds of peanuts, the shop can produce a maximum of 90 bags of standard mix (using all raisins) or 135 bags of deluxe mix (using all peanuts). However, the owner estimates that no more than 110 bags of one type can be sold.

Taking profit and limitations into account, if the shop can sell all bags it produces, they should prepare as many bags of the deluxe mix as they can, given the higher profit margin, without exceeding the estimated maximum sales or ingredient availability. Thus, the optimal number of bags would be 110 of deluxe mix, which would require 73.33 pounds of raisins and 36.67 pounds of peanuts.

For the expected profit: after preparing 110 bags of deluxe mix, there will be 16.67 pounds of raisins left and 23.33 pounds of peanuts. The remaining ingredients can be used to prepare additional standard mix bags. Given that raisins are the limiting factor, the shop can prepare an additional 16 bags of standard mix (using 8 pounds of raisins and 8 pounds of peanuts).

Thus, the total expected profit is (110 bags of deluxe * $1.70 per bag) + (16 bags of standard * $1.50 per bag) = $187 + $24 = $211 profit.

6 votes

Final answer:

To calculate the maximum profits for the candy shop, you must determine the number of deluxe and standard mix bags to prepare by using linear programming or algebra, based on the constraints of available ingredients and the maximum number of bags that can be sold.

Step-by-step explanation:

To maximize profits for the candy shop during the holiday season, we have two variables: the number of deluxe mix bags (let's call this x) and the number of standard mix bags (y).

The constraints for the ingredients are based on the quantity of raisins and peanuts available: 90 pounds of raisins and 60 pounds of peanuts, which translates to:

  • 2/3x + 1/2y ≤ 90 (raisins)
  • 1/3x + 1/2y ≤ 60 (peanuts)

There's also a constraint which states that no more than 110 bags of one type can be sold:

  • x ≤ 110
  • y ≤ 110

The profit for each bag of the deluxe mix is $2.90 - ($1.50 * 2/3 + $0.60 * 1/3) and the profit for each bag of the standard mix is $2.55 - ($1.50 * 1/2 + $0.60 * 1/2). We need to calculate these individual profits and then create a profit function which is:

Profit = (Deluxe mix profit per bag)x + (Standard mix profit per bag)y

To find the number of bags of each mix to maximize profits (expected profit), we would use linear programming or algebra to solve the system of inequalities, considering the constraints.

The detailed solution will require calculations that are not displayed here.

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