Question

Путь от пункта а до пункта b велосипедист проехал за 5 часов ,а мотоциклист за 2 часа.Скорость мотоциклиста на 23,4 км\ч больше скорости велосипеда.Чему равно расстояние от пункта а до пункта bПомогите плиииииииз

Answer 1

Пусть t(в)=5ч   t(м)=2ч     V(в)=хкм/ч     V(м)=х+23,4км/ч, тогда: 
5х=(х+23,4)*2
5х=2х+46,8
5х-2х=46,8
3х=46,8
х=46,8/3
х=15,60(км/ч)
S=15.60*5=78км

Answer 2

Calculating the Distance from Point A to Point B

To calculate the distance from point A to point B, we can use the formula:

distance = speed × time

Given that the cyclist took 5 hours and the motorcyclist took 2 hours, and the motorcyclist's speed is 23.4 km/h faster than the cyclist's speed, we can calculate the distance using these values.

First, let's calculate the speed of the cyclist and the motorcyclist.

The speed of the motorcyclist can be represented as x km/h, and the speed of the cyclist can be represented as (x - 23.4) km/h.

Using the formula distance = speed × time, we can calculate the distance.

Calculating the Speed of the Cyclist and the Motorcyclist

The speed of the motorcyclist can be represented as x km/h, and the speed of the cyclist can be represented as (x - 23.4) km/h.

The equation for the cyclist's journey is: distance = (x - 23.4) km/h × 5 hours

The equation for the motorcyclist's journey is: distance = x km/h × 2 hours

Solving for the Distance

By equating the two distance equations, we can solve for the distance from point A to point B.

5(x - 23.4) = 2x

Solving for x: 5x - 117 = 2x 5x - 2x = 117 3x = 117 x = 39

Now that we have the speed of the motorcyclist, we can calculate the distance from point A to point B.

distance = 39 km/h × 2 hours distance = 78 km

So, the distance from point A to point B is 78 kilometers.