Question

Собственная скорость катера равна 20 3/5 км/ч а скорость течение реки 1 1/2км/ ч . найти скорость катера и против течения реки

Answer 1

Ответ:

19.1 км/ч.

Пошаговое объяснение:

V-скорость

Vпротив течения реки = Vкатера - Vтечения

Vпротив течения реки = $20\frac{3}{5} - 1\frac{1}{2} = 20\frac{6}{10} -1\frac{5}{10} = 19\frac{1}{10} = 19.1$ км/ч

Answer 2

Calculating Boat Speed and Speed Against the Current

To find the boat's speed and speed against the current, we can use the following formulas:

1. Boat's Speed (B) = (Boat's Speed + Speed of the Current) 2. Speed Against the Current (C) = (Boat's Speed - Speed of the Current)

Given: - Boat's Speed = 20 3/5 km/h - Speed of the Current = 1 1/2 km/h

Calculations

1. Boat's Speed (B) = 20 3/5 km/h + 1 1/2 km/h 2. Speed Against the Current (C) = 20 3/5 km/h - 1 1/2 km/h

Results

1. Boat's Speed (B) = 22 1/10 km/h 2. Speed Against the Current (C) = 19 1/10 km/h

Therefore, the boat's speed is 22 1/10 km/h and the speed against the current is 19 1/10 km/h.