Question

Между двумя портами 484км из них одновременно вышли навстречу друг другу два теплохода и встретлись через 4 часа после начала движени скорость одного теплохода 45 км в час предели скорость другого теплохода

Answer 1

1) 45 * 4 = 180 км - проплыл первый теплоход до встречи со вторым
2) 484 - 180 = 304 км - проплыл второй теплоход до встречи с первым
3) 304 : 4 = 76 км/ч - скорость второго теплохода

или так:
х км/ч - скорость второго теплохода
45 + х км/ч - скорость сближения теплоходов
(45 + х) * 4 = 484
45 + х = 484 : 4
45 + х = 121
х = 121 - 45
х = 76 км/ч - скорость второго теплохода

Answer 2

Problem Analysis

We have two ships that start simultaneously from two ports and meet each other after 4 hours. The speed of one ship is given as 45 km/h. We need to determine the speed of the other ship.

Solution

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

Since both ships are traveling towards each other, their combined speed is the sum of their individual speeds. Therefore, the combined speed of the two ships is 45 km/h + x km/h = 45 + x km/h.

We know that the distance between the two ports is 484 km. The formula to calculate the distance is:

Distance = Speed × Time

For the first ship, the distance traveled is 45 km/h × 4 hours = 180 km.

For the second ship, the distance traveled is x km/h × 4 hours = 4x km.

Since the two ships meet each other, the sum of the distances traveled by both ships should be equal to the total distance between the ports:

180 km + 4x km = 484 km

Now we can solve this equation to find the value of x.

180 + 4x = 484

Subtracting 180 from both sides:

4x = 484 - 180

4x = 304

Dividing both sides by 4:

x = 304 / 4

x = 76

Therefore, the speed of the other ship is 76 km/h.

Answer

The speed of the other ship is 76 km/h.