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Reptile [31]
3 years ago
5

A company produces two types of solar panels per year: x thousand of type A and y thousand of type B. The revenue and cost equat

ions, in millions of dollars, for the year are given as follows. R(x, y)-5x + 7y C(x,y) x2-2xy+9y+3x -87y-6 Determine how many of each type of solar panel should be produced per year to maximize proft. The company will achieve a maximum profit by selling solar panels of type A and sellingsolar panels of type B
Mathematics
1 answer:
jolli1 [7]3 years ago
5 0

Answer:

  • 7000 type A
  • 6000 type B

Step-by-step explanation:

We assume your equations are intended to be ...

C(x,y)=x^2-2xy+9y^2+3x-87y-6\\R(x,y)=5x+7y

Then the profit equation is ...

P(x,y)=R(x,y)-C(x,y)=5x+7y-x^2+2xy-9y^2-3x+87y+6\\=-x^2+2xy-9y^2+2x+94y+6

The partial derivatives of profit with respect to x and y are zero when profit is maximized.

  ∂P/∂x = 0 = -2x +2y +2

  ∂P/∂y = 0 = 2x -18y +94

Simplifying, these equations are ...

  • y = x -1
  • x -9y = -47

Substituting the first into the second gives ...

  x -9(x -1) = -47

  -8x = -56

  x = 7

  y = 7 -1 = 6

The company will maximize profit by selling 7000 panels of type A and 6000 panels of type B.

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