WECO1031 Term 4 2022 Assignment Questions – Version A
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WECO1031 Term 4 2022 Assignment Questions – Version A
1. (5 marks) Suppose Delta Corp allocates $600,000 to spend on research and marketing. Delta Corp estimates that by spending $x on marketing and $y on research it will sell a total amount of (Q) (measured in $):
4 1
Q = 30x 5y 3
Using Lagrange multipliers calculate the optimum amount that Delta Corp should spend on marketing and research to maximise sales?
2. (5 marks) Suppose the demand function of a candy business (Qd ) is given by
Qd = 1000 e
where:
P = unit price of candy
The fixed costs of the candy business are $100, and the variable costs are $2 per unit. Calculate the unit price of candy that maximises the profit of the candy business.
3. (5 marks) Suppose Australia’s aggregate income (Y) has two components: aggregate consumption (C ) and aggregate investment (I). In year t :
= 0.5 (C + I − Y)
C = 0.7Y + 500
I = 0.2Y + 500
Using differential equations, find an expression for Y(t ) when Y(0) = 15,000.
2022-08-30