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12345797
@12345797
August 2021
1
19
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номер 3 (а,б)
дам 20 баллов
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Svetik0602
1) 5850/13=450 м 2- площадь участка
2) 450/30=15 (м) ширина
1) 9+1/3=12 кг/м2
2)30*40=1200 м 2
3)1200/12=100 кг
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Answers & Comments
2) 450/30=15 (м) ширина
1) 9+1/3=12 кг/м2
2)30*40=1200 м 2
3)1200/12=100 кг