Help me solve by quadratic inequalityPLEASE!? - for sale r cake topper
Fruitcake profitable. Sharon R Income (U.S. dollars) in the sale of fruitcake x is calculated by the formula: R = 50x-x ^ 2 The cost c (in dollars) for the production of fruit cake x by C = 2x 40 given. For what values of x is the positive benefits of Sharon? (Profit = revenue - expenditure)
For Sale R Cake Topper Help Me Solve By Quadratic InequalityPLEASE!?
2 comments:
RC = 50x-x ^ 2 - (2x +40)
Profit S.
P = 50x-x ^ 2-2x-40
To be positive P =- x ^ 2 48 X-40> 0,
This is a quadratic equation ax ^ 2 + bx + c> 0
a =- 1 b = 48 c =- 40
x = [-b + /-sqrt (b ^ 2-4ac)] / 2
Solution x 0.848 = 47.15 or
P is positive for x 1 to 47 fruit cakes.
profit, if
50X-x ^ 2> 2 x 40
X ^ 2 - 48x + 40> 0
X ^ 2 - 48x + 40 = 0 when x = 848,326,195 and X = 47.15167381
then x-value must be
0.848326195 \\ \\ \\ \\ \\ \\ \\ \\ u0026lt; X u0026lt \\ \\ \\ \\ \\ \\ \\ \\; 47.15167381
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