14.1 900 . , 400 . , 350 . , 100 . , _________ . . | ○ 50 ○ 50 ○ 450 ○ 150 |
14.1:
, ; , . 50 :
.
14.2 100 . ., 60 . ., 220 . ., ________________ .. | ○ 40 . . ○ 180 . . ○ 120 . . ○ 60 . |
14.2:
. . . . , 60 . .
.
:
60 . .
14.3 () , 250, 150, 300, 150, 50. | 100 |
14.3:
, . . , .
= 300 + 150 + 50 = 500
= 250 + 150= 400
: 500 400 = 100.
14.4 | ○ ○ ○ ○ |
14.4:
, .
14.5 , . | ○ 1 ○ 2 ○ 4 ○ 3 |
14.5:
|
|
. , (AD). . , , .
:
1
2
4
3
14.6 300 .., 1500 .., 300 . ., | ○ 1200 .. ○ 2100 .. ○ 1800 .. ○ 900 .. |
14.6:
. , .
(300)= (1500) (300 + ). = 900 ..
14.7 , IS, | ○ ○ ○ ○ |
14.7:
IS (-) , . IS , (D). , . , IS.
14.8 , IS | ○ ○ ○ ○ |
14.8:
IS (-) , . IS ( ) , (D). , .