Предмет: Математика, автор: 23455678890

Моторная лодка 2 ч плыла по течению реки и 3 ч против течения. Собственная скорость моторной лодки 19,5 км/ч, скорость течения реки 2,8 км/ч. Какое расстояние проплыла моторная лодка?

Ответы

Автор ответа: alenadorofeeva1

1)19,5+2,8=22,3 (км/ч) скорость лодки по течению реки
2)22,3*2=44,6 (км) проплыла лодка по течению реки
3)19,6-2,8=16,8 (км/ч) скорость лодки против течения реки
4)16,8*3=50,4 (км) проплыла лодка против течения реки
5)50,4+44,6=95 (км) проплыла лодка всего
Ответ:лодка проплыла 95 километров

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