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48-50 . 18,5 -19 . = 50/3 + 2.
: 2 , 60% , 40% (), 225 /50.. 3 .
: 3,0 3,5; 4,0.
:
- 2*2 3,0: 10 = 17,5 .
- 15 3,5: 10 = 27 .
:
1. :
: 50 50 * 17,5. / 10 = 87,5 . = 88
(): 50 * 27. / 10 = 135
.
:
3,5 88 , ,
3,0 2*2 = 14 = 5 .
:
1. " " 15
15 - 3,5.
135 .
«» 15 135/15 = 9 , 135 – 88 = 47 (. . , . . 88*1/2 = 44.)
( 1 1).
16, 17, 18 – ( 2-4 1)
19 – – (1 5):
5 , 5 . , 5 , 5 . .
20, 21, 22, 23 – ( 6-9 1)
24 – – ( 10 1):
5 . , 5 , 5 . , 5 .
15 24 , 25 43 , 13,5 – 14 , (50/3 – 2-3 . = 13,6 )
25, 26, 27, 28 – ( 1-4 1) = 135.
29 – – ( 5 1) = 135.:
5 , 5 . , 5 , 5 . .
30, 31, 32, 33 – ( 6-9 1) = 135.
34 – – ( 10 1) = 135.:
5 . , 5 , 5 . , 5 .
35, 36, 37, 38 – ( 1-4 1) = 135.
39 – – ( 5 1) = 135.:
5 , 5 . , 5 , 5 . .
40, 41, 42, 43 – ( 6-9 1) = 135. = 13,5 .
:
44 – = 135. – 9. = 126 .
– ( 10 1):
5 . , 2 , 3 , 5 . , 5 = 14.
45, 46, 47, 48 – ( 6-9 1) = 126. = 15 .
49 – 18. = 126. – 18 . = 108.:
– ( 5 1)
4 , 5 . , 2 , 3 , . : 2 , 3 = 12.
50, 51, 52, 53 – ( 6-9 1) = 108.
54 – 27 . = 108. – 27. = 81 .:
– ( 10 1):
4 . , 2 , 2 , . : 2 , 2 , 2 , 2 = 9.
55 – 81.
56 – 27 . = 81. – 27. = 54.:
2 , 1 , 2 , 1 , 2 , 1 , = 6 .
57, 58 – = 54 .
59 – , – ( 5 1) = 54.
2 , 2 . , 2 , 2 . = 6 .
60 ¬– , 54 .
61 – 27 . = 54. – 27. = 27.: 2 , 2 , 2 = 3 .
62 – 9 . = 27. – 9. = 18.: 2 , 1 .
63 – 9 . = 18. – 9. = 9.: 2 .
9 . .
18,5 – 19 ( 50/3 + 2 ).
2. :
: 50 * 17,5. / 10 = 87,5 . = 88
( ): 50 * 15. / 10 = 75
.
:
3,5 88 , , 3,0 2*2 = 14 = 5 .
:
15 - 3,5.
75 , . . 13 . = 88. – 75.
3,5 26 = 16 40 = 12,5 .
:
41 .
5 : 75./5 = 15 .
41 : *2 , 11 , 2 *, * * 5 = 75 . – 10. = 65 .
42, 43 : = 65 .
44 : *2 , 9 , 2 *, * * 5 = 65 . – 10. = 55 .
45, 46 : = 55 .
47 : *2 , 7 , 2 *, * * 5 = 55 . – 10. = 45 .
48, 49 : = 45 .
50 : *2 , 5 , 2 *, * * 5 = 45 . – 10. = 35 .
51, 5 : = 35 .
53 : *2 , 3 , 2 *, * * 5 = 35 . – 10. = 25 .
54 : = 25 .
55 : *2 , 1 , 2 *, * * 5 = 25 . – 10. = 15 .
56 : *1 , 2 *, * * 5 = 15 . – 5. = 10 .
10 . .
18,5 – 19 ( 50/3 + 2 ).
...
3. :
.
.
: 5 :
88. / 5 = 17, 6 .
.
1 – = 17,6 – 2 = 15,5
1 2 = 17,6 * 2 = 35,2 .
2 = 17,6 * 2 = 35,2 + 2 = 37,2 .
, :
= 16 .
: 18 * 2 = 36 .
: 88 . – 36. – 16. = 36 .
16/2 = 8 ,
18 ().
:
, .
2 :
:
- : 1- , , ( ) = .
- 18 , , .
- 1 , , , ( ) = , .
- 18 , .
: 1+18+1+18 = 38 .
,
:
, .
1- – ,
* + 2 *, ,
.
3,5 .
1 = 1 - , *2 *, 1 , 1 – = 19 .
2 = 1 – , 18 .
3 = 1 – , 17 , 1 .
4 = 1 – , 18 .
5 = 1 – , 17 , 1 .
6 = 1 – , 18 .
7 :
7 = 1 – , 2 , 13 , 2 , 1 = 17 .
8 = 1 – , 16 .
9 = 1 – , 2 , 11 , 2 , 1 = 15 .
10 = 1 – , 14 .
11 = 1 – , 2 , 9 , 2 , 1 = 13 .
12 = 1 – , 12 .
13 = 1 – , 2 , 7 , 2 , 1 = 11 .
14 = 1 – , 10 .
15 = 1 – , 2 , 5 , 2 , 1 = 9 .
16 = 1 – , 8 .
17 = 1 – , 2 , 3 , 2 , 1 = 7 .
18 = 1 – , 6 .
19 = 1 – , 2 , 1 , 2 , 1 = 5 .
20 = 1 – , 4 , .
:
5 = 65 = 30-35 . .[/i]
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