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__________________2012 .._________________
88
1. 0 20 ().
2. ().
3. ().
4. .
5. .
3.4
, | dv, /3 | W (a), % | |||
% | |||||
0 10 | 1,23 | 14,5 | 23,8 | 14,4 | 8,3 |
10 20 | 1,28 | 14,9 | 24,3 | 14,7 | 8,5 |
:
dv, /3 ;
W (a), % - ;
;
;
.
,
.
1) 0 20 ().
= (1* dv1*1)+ (2* dv2*2)++ (n* dvn*n)
|
|
0-10=14.5*1,23*10=178,35 (3/);
10-20=14,9*1,28*10=190,72 (3/);
20-30=15,3*1,33*10=203,49 (3/);
30-40=15,8*1,39*10=219,62 (3/);
40-50=16,5*1,45*10=239,25 (3/).
0-50=178,35+190,72+203,49+219,62+239,25=1031,43 (3/).
2) ().
=(1* dv1*1)+ (2* dv2*2)++ (n* dvn*n)
0-10=8,3*1,23*10=102,09 (3/);
10-20=8,5*1,28*10=108,8 (3/);
20-30=8,7*1,33*10=115,71 (3/);
30-40=9,1*1,39*10=126,49 (3/);
40-50=9,2*1,45*10=133,4 (3/).
0-50=102,09+108,8+115,71+126,49+133,4=586,49 (3/).
3) ().
= =1031,43 - 586,49=444,94 (3/).
4) .
, :
()
0-10=14,4*1,23*10=177,12 (3/);
10-20=14,7*1,28*10=188,16 (3/);
20-30=14,9*1,33*10=198,17 (3/);
30-40=15,6*1,39*10=216,84 (3/);
40-50=16,1*1,45*10=233,45 (3/);
0-50=177,12+188,16+198,17+216,84+233,45=1013,74 (3/).
()
0-10=23,8*1,23*10=292,74 (3/);
10-20=24,3*1,28*10=311,04 (3/);
20-30=24,7*1,33*10=328,51 (3/);
30-40=25,1*1,39*10=348,89 (3/);
40-50=25,8*1,45*10=374,1 (3/);
0-50=292,74+311,04+328,51+348,89+374,1=1655,28 (3/).
, = 1655,28 1013,74 = 623,54 (3/).
5) .
, = 1655,28 586,49 = 1068,79 (3/).
, 444,94 3/ ( 3.5)
3.5
, 3/ | |
<200 | |
200 400 | |
400 600 | |
>600 |