Question

Яхта рухалася 10 год за течією й 3 год проти течії. Який шлях подолала яхта за весь час руху, якщо швидкість течії ріки 3 км/год, а власна швидкість яхти 13 км/год.

Answer 1

Ответ:
190

Пошаговое объяснение:

13+3=16 км/ч - скорость по течению

13-3=10 км/ч - скорость против течения

10*16+3*10=160+30=190 км весь путь

или так

10*(13+3)+3*(13-3)=10*16+3*10=160+30=190  км

Answer 2

Calculating the Distance Traveled by the Yacht

To calculate the distance traveled by the yacht, we can use the formula:

Distance = Speed × Time

First, let's calculate the distance traveled with the current:

Distance with the current = Speed with the current × Time with the current

Given: - Speed of the current = 3 km/h - Time with the current = 10 hours

Using the formula, we get: Distance with the current = 3 km/h × 10 h = 30 km

Next, let's calculate the distance traveled against the current:

Distance against the current = Speed against the current × Time against the current

Given: - Speed of the current = 3 km/h - Time against the current = 3 hours

Using the formula, we get: Distance against the current = 3 km/h × 3 h = 9 km

Now, to find the total distance traveled by the yacht, we can add the distances traveled with and against the current:

Total distance = Distance with the current + Distance against the current Total distance = 30 km + 9 km = 39 km

So, the yacht traveled a total distance of 39 kilometers during the entire journey.