Answer to Question #246559 in Microeconomics for Vani

Question #246559
MC = 100 + 0.004 Q
Diminta :
a. hitung biaya produksi marginal pada 2500, 5000,7500 untuk keluaran
b. nyatakan keluaran sebagai fungsi dari biaya marginal . Hitung tinkat keluaran dimana MC = 100,125,dan 150
c. Hitung tingkat keluaran yang memaksimalkan laba pada harga grosir dalam industri tersebut stabil pada 150 per chip dan karena itu p = MR = 150.
1
Expert's answer
2021-10-05T15:43:21-0400

Given

MC=100+0.004QMC = 100 + 0.004 Q

a)Calculating marginal cost of production

At Q=2500,5000,7500At\space Q=2500,5000,7500

MCQ=2500=100+0.004(2500)=110MCQ=5000=100+0.004(5000)=120MCQ=7500=100+0.004(7500)=130MC_{Q=2500}=100+0.004(2500)=110\\ MC_{Q=5000}=100+0.004(5000)=120\\ MC_{Q=7500}=100+0.004(7500)=130


b)

MC=100+0.004QQ=250(MC100)MC=100+0.004Q\\Q=250(MC-100)

The expression of output as a function of marginal cost.

MC100=250(100100)=0MC125=250(125100)=6250MC150=250(150100)=12500MC_{100}=250(100-100)=0\\ MC_{125}=250(125-100)=6250\\ MC_{150}=250(150-100)=12500


c) Profit maximizing output level

As

MC=100+0.004QMR=P=150MC=100+0.004Q\\MR=P=150

Profit=(PMC)Q=(RevenueCost)=(1501000.004Q)Q=50Q0.004Q2Profit=(P-MC)Q=(Revenue-Cost)\\=(150-100-0.004Q)Q=50Q-0.004Q^2


Maximizing profit

d(profit)dQ=0d(50Q0.004Q2)dQ=0=500.008QQ=50×10008=6250\frac{d(profit)}{dQ}=0\\\frac{d(50Q-0.004Q^2)} {dQ}=0\\=50-0.008Q\\Q=\frac{50×1000}{8}=6250

Profit maximizing output level at wholesale price at 150 is 6250


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