Question

расстояние между городами 770 км. одновременно на встречу друг другу вышли 2 автобуса. скорость одного 42 км/ч, а другово 35км/ч. через сколько часов автобусы встретелись

Answer 1

Ответ:

1)42+35=77(км/ч)-общая скорость

2)770:77=10(ч)-они встретились

ответ: через 10 часов

Пошаговое объяснение:

находим общую скорость и делим на расстояние

Answer 2

Problem Analysis

We are given that two buses are traveling towards each other. The distance between the cities is 770 km. The first bus is traveling at a speed of 42 km/h, and the second bus is traveling at a speed of 35 km/h. We need to determine how many hours it will take for the buses to meet.

Solution

To solve this problem, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the sum of the speeds of the two buses. Let's calculate the time it will take for the buses to meet.

Calculation

The relative speed of the two buses is 42 km/h + 35 km/h = 77 km/h.

Using the formula, we can calculate the time it will take for the buses to meet:

Time = 770 km / 77 km/h = 10 hours

Therefore, the buses will meet after 10 hours.

Answer

The two buses will meet after 10 hours.