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2003Stas2003

Ответ: Сначало нужно найти скорость за 6 часов: 4frac{3}{4}+4frac{1}{4}= frac{11}{4}+frac{9}{4}=frac{20}{4}=5 км/ч t=t1+t2=3+3=6ч.

Расстояние S=v*t, S= 5*6=30 км.

Пошаговое объяснение:

|выше объяснил|

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