1. QD = 150 3 P QS = 15 + 12 P. 30 . .
1. : ) ? ) ? ) ?
2. : ) ; ) .
1. 150 3 P = 15 + 12 P Þ P = 11; Q = 117.
; 180 3 P = 117 Þ P = 21; D P = 10.
1. 180 3 P = 15 + 12 P Þ P = 13; D P = 2.
1. ;
Q = 180 3×11= 147; D Q = 30.
2. eD = 0,282; eS = 1,128; 2) eD = 0,351; eS = 1,106.
2.
QD = 20 P QS = 4 + 2 P. 3 . . . : ) ; ) ; ) , ; ) .
) 20 P = 4 + 2 P P = 8;
Q = 12; 20 P = 4 + 2(P 3) P = 10; Q = 10. : D P = 2; D Q = 2.
) 3×10 = 30. : (20 8)×12/2 + (8 2) ×12/2 = 108;
(20 10)×10/2 + (7 2) ×10/2 = 75. :
(108 75) 30 = 3.
) D P/t = 2/3.
) : (10 - 7) ∙ (12 - 10)∙1/2 = 3
. 5.
3. : QD = 9 P,
QS = 3 + 3 P.
1. , , ?
2. ?
t . .
9 P = 3 + 3(P t); P = 3 + 0,75 t; Q = 6 0,75 t. T = tQ = 6 t 0,75 t 2. 6 1,5 t = 0 Þ t = 4. P * = 6; Q * = 3, T = 4×3 = 12.
4. 200 = 500 40 ; w = 4. : ) = 10; ) .
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) (., , 4 2):
(., , 4 1): .
) ; 25 . 5000 .
5. , ,
t = 0, 1,...,6 ( ).
1. .
2. , , , 30 ?
3. ?
1. , Pt = Pt 1. 0,5 P 10 = 200 P Þ P * = 140; Q * = 60.
2. : = 230 P 1, = 60,
P 1= 230 60 = 170. : = 0,5×170 10 = 75; P 2= 230 75 = 155. : = 0,5×155 10 = 67,5;
P 3= 230 67,5 = 162,5. : = 0,5×162.5 10 = 71,3; P 4= 230 71,3 = 158,8. : = 0,5×158,8 10 = 69,4; P 5 = 230 69,4 =160,6. : = 0,5×160,6 10 = 70,3; P 6= 230 70,3 = 159,7.
3.
0,5 P 10 = 230 P Þ P * = 160; Q * = 70.
6. QD =120 3 P.
1. , 20
TC = 10 + 8 Q 4 Q 2 + Q 3?
2. ?
1. MC (Q) = P:
.
20 , .
,
120 3 P = P * = 16,7; Q * = 69,9.
2) P = MC = AC min. , Q :
(AC)¢ = 2 Q 4 10/ Q 2 = 0 Q = 2,69.
AC = 2,692 4×2,69 + 8 + 10/2,69 = 8,2. , 8,2 . ., 120 3×8,2 = 95,4 . , ,
.
. 6.
7. , , 1 = 4 + 6 Q + Q 2, 2 = 256 25 Q + Q 2. ; ) QD = 12,5 0,25 ; ) QD = 35,5 0,5 .
) P = min AC. AC 1
,
min AC 1 = 4/2 + 6 + 2 = 10. AC 2
,
min AC 2 = 256/16 25 + 16 = 7. , P = 10 2 , P = 7 16 . P = 7 10,75 . TC 1. P = 10; Q = 10.
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) P = 7 32 . P = 7; Q = 32.
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. 7.
8. QD = 30 P. 3 . - . 6 . TC 1 = 8 q, 7 . TC 2 = 10 q, 9 . TC 3 = 12 q.
1. : ) ; ) .
2. , - 3 . ?
1. :
P = 12; Q = 18. , 1- 2- , 3- 5 . . : 12×18 = 216. () 1- 2- ; : (12 8)6 + (12 10)7 = 38.
2. P = 12; Q = 21.
3- . , .
. 8.
1. QD = 200 2 P
QS = 10 + 6 P. 40 . . : ) ? ) ? ) ?
2. : ) ; ) .
2. QD = 200 5 P QS = 10 + 5 P, QD = 150 8 P QS = 4 + 2 P. 4 . . , 2 . . . .
3. P = 20; Q = 150; eD = 2; eS = 1,5. : ) ; ) ; ) , .
4. P = 20; Q = 80;
eD = 2; eS = 1,25. : ) ; ) ; ) , ; ) ) .
5. 200 = 500 40 ; w = 1. : ) = 10; ) .
6. :
9 . .
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1. , , ?
2. ?
7. , . , 1- - 10 . .
1. 3- .
2. ?
8. QD = 270 5 P.
1. , 31 TC = 48 + 10 Q 5 Q 2 + Q 3?
2. ?
3. ?
9. , . , 1- - 40 . .
1- 5- .
10. QD = 250 10 . .
1. , LTC = 30 Q 10 Q 2 + Q 3?
2. .
11. :
QD = 12,5 0,25 . , , 1 = 4 + 6 Q + Q 2, 2 = 98 10 Q + 0,5 Q 2. , 16,5 . ?
12. QD = 50 2 P. 3 . - . 10 TC 1 = 5 q, 15 TC 2 = 8 q, 20 TC 3 = 10 q. .
13. 2 ., , : ) 120 ; w = 2, r = 18; ) 54 = 60?
14. 50 80 . . 25 , 120 . . , Qm ; Qg . , w=20, r = 5. , 10 . ?
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4. (, , )