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An artist sold 400 glass figurines last year for $60 each. The artist wants to increase her profit margin this year but predicts that each $5 increase in price will reduce the number of figurines sold by 10. How many $5 price increases can the artist add and still expect to make total profit of at least $32,000?

User Mbinette
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1 Answer

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Final answer:

The artist can implement several $5 price increases each reducing the quantity sold by 10 units. To find the maximum number of increases while making at least $32,000 in profit, we solve the inequality 50p^2 + 1400p - 8000 ≥ 0 for the highest integer value of p.

Step-by-step explanation:

The artist initially sold 400 glass figurines at $60 each. With each $5 price increase, the number of figurines sold decreases by 10. We need to determine how many $5 price increases can be added while still making a total profit of at least $32,000.

To calculate total profit, we use the formula:

  • Total Profit = (Price per figurine × Number of figurines sold) - Total costs

If the artist initially sells 400 figurines at $60, this means the total revenue without any price increase is:

$60 × 400 = $24,000

Assuming no costs, to achieve at least $32,000 in profit, we need additional revenue:

$32,000 - $24,000 = $8,000

Each $5 price increase will both increase the price per figurine and decrease the amount of figurines sold by 10 units.

Let's define:

  • p = number of $5 price increases
  • New price per figurine = $60 + $5p
  • New number of figurines sold = 400 - 10p

The total profit with the new price and quantity sold is given by:

Profit = (New price per figurine) × (New number of figurines sold)

To calculate the maximum number of $5 price increments, the profit equation must satisfy:

($60 + $5p) × (400 - 10p) ≥ $32,000

The artist needs to find the highest integer value of p for which the inequality holds true. This requires solving for p:

($60 + $5p) × (400 - 10p) = $32,000

$24,000 + (400p × $5 - $60 × 10p + $5 × 10p × p) ≥ $32,000

$24,000 + (2000p - 600p + 50p^2) ≥ $32,000

$24,000 + 1400p + 50p^2 ≥ $32,000

50p^2 + 1400p - 8000 ≥ 0

This quadratic inequality must be solved to find the range of p values. The artist will choose the maximum integer that satisfies this inequality to maximize price without falling below the $32,000 profit threshold.

User Macetw
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