Question

Реши задачу Вычисли и запиши ответ. Расстояние между населенными пунктами на велосипеде можно преодолеть за 2 часа. Во сколько раз скорость автомобиля должна быть больше скорости велосипедиста чтобы это расстояние можно было преодолеть на автомобиле за 30 минут

Answer 1

2ч-120минут
1) 120:30=4(р.)
Ответ: в 4 раза скорость автомобиля должна быть больше скорости велосипедиста

Answer 2

Problem Analysis

We are given that the distance between two settlements can be covered on a bicycle in 2 hours. We need to find the ratio of the speed of a car to the speed of a cyclist, such that the distance can be covered by the car in 30 minutes.

Solution

Let's assume the speed of the cyclist is x units per hour. Therefore, the distance between the settlements can be covered by the cyclist in 2 hours.

The speed of the car, which we need to find, is y units per hour. We want to find the ratio of y to x such that the distance can be covered by the car in 30 minutes (0.5 hours).

We can set up the following equation based on the given information:

Distance covered by the cyclist = Distance covered by the car

Using the formula speed = distance/time, we can write:

x * 2 = y * 0.5

Simplifying the equation, we get:

2x = 0.5y

To find the ratio of the car's speed to the cyclist's speed, we can divide both sides of the equation by x:

2 = 0.5y/x

Therefore, the ratio of the car's speed to the cyclist's speed should be 2 in order for the car to cover the distance in 30 minutes.

Answer

The ratio of the car's speed to the cyclist's speed should be 2 in order for the car to cover the distance in 30 minutes.