Question

Помогите очень срочно! Собственная скорость катера 18 км/ч, а скорость течения реки 15% собственной скорости катера. Какой путь пройдет катер за 3 часа по течению реки

Answer 1

1) 18×0,15=2,7 (км/ч) - скорость течения ; 2) 2,7+18=20,7 (км/ч) - скорость по течению ; 3) 20,7×3=62,1 (км) ; Ответ: 62,1 км

Answer 2

Calculation of the Boat's Speed in the River Current

To determine the distance traveled by the boat in 3 hours, we first need to calculate the boat's speed in the river current.

Given: - Boat's own speed: 18 km/h - River current speed: 15% of the boat's own speed

To calculate the speed of the boat in the river current, we can use the following formula:

Speed in the river current = Boat's own speed + (River current speed * Boat's own speed)

Substituting the given values into the formula, we have:

Speed in the river current = 18 km/h + (0.15 * 18 km/h)

Calculating the expression, we find:

Speed in the river current = 18 km/h + (0.15 * 18 km/h) = 18 km/h + 2.7 km/h = 20.7 km/h

Therefore, the boat's speed in the river current is 20.7 km/h.

Calculation of the Distance Traveled by the Boat in 3 Hours

To calculate the distance traveled by the boat in 3 hours, we can use the formula:

Distance = Speed * Time

Substituting the values into the formula, we have:

Distance = 20.7 km/h * 3 hours

Calculating the expression, we find:

Distance = 62.1 km

Therefore, the boat will travel a distance of 62.1 km in 3 hours along the river current.