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Ответ

Автор - jenya08091999

Ответ:

1) 428 c

2) 200 мин

3) 4 т 768 кг

4) 38 см 7 мм

Ответ

Автор - welshcorgipeach04

Ответ:

1)60(1мин=60с)×7=420с+8=428сек.

2) 3ч=60мин

60×3=180мин

180+20=200мин

3) 1т=1000кг

4786кг=4т786кг

4) 1см=10мм

387мм=38см7мм

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