Question

ДВЕ МАШИН ВЫЕХАЛИ ОДНОВР ПЕР S 80KM/Ч ВТОРАЯ 70КМ/Ч ЧЕРЕЗ 4 ЧАСА ВСТРЕТИЛИСЬ ОПРЕДЕЛИТЬ РАСТОЯ МЕЖДУ ДВУМЯ ГОРОДАМИ

Answer 1

80*4=320(км) проехала первая машина
70*4=280(км) проехала вторая машина.
320+280=600(км) расстояние между двумя городами.
Ответ: 600 километров.

Answer 2

Problem Analysis

We are given two cars that start from different cities and travel towards each other. The first car is traveling at a speed of 80 km/h, and the second car is traveling at a speed of 70 km/h. We need to determine the distance between the two cities when they meet after 4 hours.

Solution

To solve this problem, we can use the formula: distance = speed * time.

Let's calculate the distance traveled by each car after 4 hours.

The first car travels at a speed of 80 km/h for 4 hours, so the distance traveled by the first car is 80 km/h * 4 h = 320 km.

The second car travels at a speed of 70 km/h for 4 hours, so the distance traveled by the second car is 70 km/h * 4 h = 280 km.

When the two cars meet, the sum of their distances traveled will be equal to the total distance between the two cities. Therefore, the total distance between the two cities is 320 km + 280 km = 600 km.

Answer

The distance between the two cities is 600 km.

Explanation

The first car travels a distance of 320 km in 4 hours at a speed of 80 km/h, while the second car travels a distance of 280 km in 4 hours at a speed of 70 km/h. When they meet, the sum of their distances traveled will be equal to the total distance between the two cities, which is 600 km.