1ц макулатуры сберегает от вырубки 8 сосен.сколько сосен сберегли школьники, если они сначала собрали 2820кг макулатуры,а потом ещё 2180кг?
Sashademin06
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13.08.2019 12:20
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2 820 + 2 180 = 5 000(кг) собрали макулатуры асего
5 000кг = 50 ц.
8 х 50 = 400(сос) сберегли школьники
ответ: 400 сосен