soal UTS 1

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SOAL

1. Dik;

QD = 20 – 4P
QS = 30 + 2P

# Dit;

Tentukan Keseimbangan Pasar

Jawab;
QD = QS
20 – 4P = 30 + 2P
– 4P – 2P = 30 – 20
– 6P = 10
P = – 10/6 : 2/2
P = – 5/3

Jadi;
P = – 5/3

Maka;
QD = 20 – 4P
QD = 20 – 4(– 5/3)
QD = 20 + 20/3
QD = 60/3 + 20/3
QD = 80/3

Maka;
QS = 30 + 2P
QS = 30 + 2(– 5/3)
QS = 30 – 10/3
QS = 90/3 – 10/3
QS = 80/3

Jadi ;
Titik Keseimbangan Pasar : P= – 5/3 dan Q= 80/3