, . , ! i. i. i, . i, . : , , , , ? , , ... |
1
20 . 20 3 , . 40 5 Y, Y . 1 , 5 . ?
:
(.18) . , : 20 = 1 . X + 5 . Y + 5 Y = 20
: : |
. 18
(1) = 20 5 Y (2), Y:
100 15 (20 5 Y) = 40 5 Y
100 300 + 75 Y + 5 Y = 40
80 Y = 240
Y = 3
Y = 3 :
+ 5 . 3 = 20
= 5
2
, 11 , . : , . , , , :
-4 | -10 | |||||||
?
:
11 .
10 :
6 .
2 .
3 .
: 6 + 2 + 3 = 11
: : 6 , 3 , 2 .
3
10$ ( ) - ( ). MUA = 12 2 . - MUB = 15 3 . PA = 2$, PB = 1$. ?
|
|
. , , :
MUA /PA = MUB /PB Þ 12 2 . 4/2 < 15 3 . 2/1 Þ 4/2 < 9/1 Þ 2/1 < 9/1.
, , , .
: D /+D = PB / PA = 1/2 = 1 /+2 . , , .
, MU, . , MUA / PA = MUB / PB.
, , .
1. . :
1. MUA / PA = MUB / PB Þ (12 2 ) / 2 = (15 3 . )/1
2. PA . + PB . = 10 Þ 2 . + 1 . = 10 Þ = 10 2 .
Þ
(12 2 ) / 2 = 15 3 . (10 2 . ) /1 Þ 6 = 15 30 + 6 Þ
7 = 21 Þ = 3; = 4 , .:
MUA / PA = MUB / PB Þ 12 2 . 3 / 2 = 15 3 . 4/1 Þ 3/1 () = 3/1 ().
2. . , .
, MUA / PA = MUB / PB . 3 4 . TU = TU3A + TU4B = 24+29 = 53 max.