Question

2. От пристани отправился катер со скоростью 42 км/ч. Через 5 ч от той же пристани в противопо- ложном направлении отправился второй катер. Через 3 ч после выхода второго катера расстояние между ними составило 435 км. Найди скорость второго катера.​

Answer 1

5+3=8 всего прошел теплоход 8*42=336 всего прошел теплоход 435-336=99 всего прошел катер 99:3=33 скорость катера. легко и просто

Answer 2

Ответ:33

Пошаговое объяснение:

Answer 3

Problem Analysis

We are given the following information: - A boat departs from a dock with a speed of 42 km/h. - After 5 hours, another boat departs from the same dock in the opposite direction. - After 3 hours, the distance between the two boats is 435 km.

We need to find the speed of the second boat.

Solution

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

The first boat travels for 5 hours at a speed of 42 km/h, so the distance it covers is: Distance1 = Speed1 * Time1 = 42 km/h * 5 h = 210 km.

The second boat travels for 3 hours at a speed of x km/h, so the distance it covers is: Distance2 = Speed2 * Time2 = x km/h * 3 h = 3x km.

The total distance between the two boats is given as 435 km.

Using the formula for the total distance traveled by both boats: Total Distance = Distance1 + Distance2.

Substituting the values we have: 435 km = 210 km + 3x km.

Simplifying the equation: 435 km - 210 km = 3x km, 225 km = 3x km.

Dividing both sides of the equation by 3: 75 km = x km.

Therefore, the speed of the second boat is 75 km/h.

Answer

The speed of the second boat is 75 km/h.