Question

Две машины выехали одновременно навстречу друг другу из двух населенных пунктов, расстояние между которыми 560 км. Одна машина проехала 235 км и заглохла. Через сколько времени доедет до нее другая машина, если ее скорость 77 км/ч?

Answer 1

560-235=325км-------------проехала вторая машина

325:77=через 4.22 часа----------доедет вторая машина.

Answer 2

1)560-235=325(км)-надо проехать второй машине,чтобы доехать до первой

2)325/77=4,2(км/ч)-время за которое доедет вторая машина

Ответ:4,2

Answer 3

Problem Analysis

We are given that two cars start simultaneously from two different towns and are traveling towards each other. The distance between the towns is 560 km. One car travels 235 km and then breaks down. We need to determine how long it will take for the other car to reach the broken-down car, given that its speed is 77 km/h.

Solution

To find the time it takes for the second car to reach the broken-down car, we need to calculate the remaining distance between the two cars and divide it by the speed of the second car.

The remaining distance between the two cars can be calculated by subtracting the distance traveled by the first car from the total distance between the towns:

Remaining distance = Total distance - Distance traveled by the first car

Let's calculate the remaining distance:

Remaining distance = 560 km - 235 km

Now, we can calculate the time it takes for the second car to reach the broken-down car by dividing the remaining distance by the speed of the second car:

Time = Remaining distance / Speed of the second car

Let's substitute the values into the equation:

Time = (560 km - 235 km) / 77 km/h

Calculating the expression:

Time = 325 km / 77 km/h

Now, we can calculate the time it takes for the second car to reach the broken-down car:

Time = 4.22 hours

Therefore, the second car will reach the broken-down car in approximately 4.22 hours.

Answer

The second car will reach the broken-down car in approximately 4.22 hours.