Question

Помогите пожалуйстааааааааааааааа(( дам 15 балов составьте буквенные выражения для решения задачи:из двух городов одновременно навстречу друг другу выехали легковой автомобиль и грузовик и встретились через 1 час.найдите расстояние между городами если скорость легкового автомобиля v1 км/ч,а скорость грузовика v2 км/ч.ответьте на вопрос задачи,если t=3,v1=80,v2=60

Answer 1

Ответ:

с чем именно помочь?

Объяснение:

.............

Answer 2

Problem Analysis

To solve this problem, we need to find the distance between two cities when a car and a truck start from each city simultaneously and meet after 1 hour. We are given the speeds of the car and the truck, as well as the time it takes for them to meet.

Solution

Let's denote the distance between the two cities as d kilometers. We can use the formula:

Distance = Speed × Time

For the car, the distance it travels in 1 hour is v1 × 1 = v1 kilometers.

For the truck, the distance it travels in 1 hour is v2 × 1 = v2 kilometers.

Since they meet after 1 hour, the total distance they travel together is the sum of the distances traveled by the car and the truck:

v1 + v2 = d

Now, let's substitute the given values into the equation and solve for d.

Given: - t = 1 hour - v1 = 80 km/h - v2 = 60 km/h

Substituting the values into the equation:

80 + 60 = d

Simplifying the equation:

140 = d

Therefore, the distance between the two cities is 140 kilometers.

Answer

The distance between the two cities is 140 kilometers.

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