Question

В 19 ч. от пристани отошли в противоположных направлениях два катера.Средняя скорость одного 48км/ч.,другого 52км/ч.В каком часу расстояние между катерами будет равно 300км?И какое расстояние пройдёт к этому времени каждый катер.

Answer 1

в 22 часа.
48*3 км
52*3 км

Answer 2

1) 48+52=100км/ч- скорость удаления
2) 300/100=3ч- через столько будет расстояние 300км
3) 19+3=22ч- во столько часов между ними будет расстояние 300 км
4)48*3=144км- пройдет первый
5)52*3=156км- пройдет второй

Ответ :156км- пройдет второй

Answer 3

Problem Analysis

We are given that two boats depart from a dock in opposite directions. The average speed of one boat is 48 km/h, and the average speed of the other boat is 52 km/h. We need to find the time at which the distance between the boats is 300 km and the distance each boat has traveled at that time.

Solution

Let's assume that the boats have been traveling for 't' hours. At that time, the first boat will have traveled a distance of 48t km, and the second boat will have traveled a distance of 52t km.

To find the time at which the distance between the boats is 300 km, we can set up the following equation:

48t + 52t = 300

Simplifying the equation:

100t = 300

t = 300 / 100

t = 3 hours

Therefore, the distance between the boats will be 300 km after 3 hours.

To find the distance each boat has traveled at that time, we can substitute the value of 't' into the distance formulas:

Distance traveled by the first boat = 48 * 3 = 144 km

Distance traveled by the second boat = 52 * 3 = 156 km

Therefore, after 3 hours, the first boat will have traveled 144 km, and the second boat will have traveled 156 km.

Summary: - The distance between the boats will be 300 km after 3 hours. - The first boat will have traveled 144 km, and the second boat will have traveled 156 km at that time.

Please let me know if anything is unclear or if you need further assistance!