Предмет: Математика, автор: Smile20385

Решите (хотя бы одно)

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Автор ответа: Про100Mashulka

К.6 PΔ=гипотенуза+катет*2
17-7÷2=5 см
К.7 за 4 минуты Угис прошел половину расстояния, а Райтис 4/10 расстояния,соответственно им осталось пройти 1/10. Угис прошел 400 м. Райтис 320м. общее расстояние 800м
К.8 12+1=13

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