Question

за 4 часа прожив течение реки теплоход прошел на 6 км больше ,чем за 3 часа движения по течению реки.Скорость течение реки 2 км\ч.Найти собственую скорость теплохода​

Answer 1

Ответ:

16 км/ч

Объяснение:

Пусть собственная скорость теплохода х км/ч, тогда его скорость по течению х+2 км/ч, против течения х-2 км/ч.

4(х-2) - 3(х+2) = 6

4х-8-3х-2=6

х=16

Answer 2

Ответ:

вот

6÷3=2

4÷2=2

2×2=4

Ответ: 4 км/ч

Answer 3

Problem Analysis

We are given that a boat traveled 6 km more in 4 hours than it did in 3 hours while moving with the current of a river. The speed of the river current is 2 km/h. We need to find the speed of the boat.

Solution

Let's assume the speed of the boat is x km/h.

When the boat is moving with the current, its effective speed is the sum of its own speed and the speed of the current. Therefore, the boat's effective speed is (x + 2) km/h.

We are given that the boat traveled 6 km more in 4 hours than it did in 3 hours while moving with the current. This can be expressed as the following equation:

(x + 2) * 4 = (x + 2) * 3 + 6

Now, let's solve this equation to find the value of x.

Calculation

Expanding the equation:

4x + 8 = 3x + 6 + 6

Simplifying the equation:

4x + 8 = 3x + 12

Subtracting 3x from both sides:

x + 8 = 12

Subtracting 8 from both sides:

x = 4

Answer

The speed of the boat is 4 km/h.

Note: The answer has been calculated based on the given information and the provided equation.