Question

Помогите пожалуйста решить задачу))Из 2х городов расстояние между которыми 350км,одновременно в противоположных направлениях,выехали два автомобиля,скорость одного 70км/ч,а другого 80км/ч.Какое расстояние будет между ними через 2часа?

Answer 1

70*2=140
80*2=160
140+160=300
350-300=50 км
Ответ 50 км. Но оформить надо правильно

Answer 2

Problem Analysis

We are given that two cars start simultaneously from two cities that are 350 km apart. One car is traveling at a speed of 70 km/h, and the other car is traveling at a speed of 80 km/h. We need to find the distance between the two cars after 2 hours.

Solution

To find the distance between the two cars after 2 hours, we need to calculate the total distance traveled by each car.

The distance traveled by the first car can be calculated using the formula:

Distance = Speed × Time

Substituting the values, we get:

Distance of the first car = 70 km/h × 2 hours

Similarly, the distance traveled by the second car can be calculated using the same formula:

Distance of the second car = 80 km/h × 2 hours

To find the distance between the two cars, we subtract the distance traveled by the second car from the distance traveled by the first car:

Distance between the two cars = Distance of the first car - Distance of the second car

Let's calculate the distances:

Distance of the first car = 70 km/h × 2 hours = 140 km

Distance of the second car = 80 km/h × 2 hours = 160 km

Distance between the two cars = 140 km - 160 km = -20 km

The distance between the two cars after 2 hours is -20 km. However, since the distance cannot be negative, we can conclude that the two cars have not yet met after 2 hours.

Answer

The distance between the two cars after 2 hours is -20 km. However, since the distance cannot be negative, we can conclude that the two cars have not yet met after 2 hours.