Question

Расстояние между двумя городами мотоциклист проехал за 3 часа.В первый час он проехал 0,3 всего пути,во второй час 9/14 оставшегося пути.найдите расстояние между городами,если известно, что мотоциклист проехал 12,4 км. меньше,чем во второй час.

Answer 1

(0,7*9*х)/14  -  0,3х=12,4

6,3х-4,2х=173,6

2,1х=173,6

х=82,7

 

расстояние между городами 82 км 700 метров

Answer 2

Calculation of the Distance Between Two Cities

To find the distance between two cities, we can use the information provided about the motorcycle rider's journey. Let's break down the information given:

- The motorcycle rider traveled for a total of 3 hours. - In the first hour, the rider covered 0.3 of the total distance. - In the second hour, the rider covered 9/14 of the remaining distance. - The total distance traveled by the motorcycle rider is 12.4 km less than the distance covered in the second hour.

To calculate the distance between the two cities, we can set up an equation based on the given information.

Let's assume the total distance between the two cities is represented by D.

According to the given information: - In the first hour, the rider covered 0.3D. - In the second hour, the rider covered (9/14) * (D - 0.3D) = (9/14) * (0.7D) = 0.45D. - The total distance traveled by the motorcycle rider is 12.4 km less than the distance covered in the second hour, so the distance covered in the second hour is 0.45D - 12.4 km.

Setting up the equation: 0.45D - 12.4 km = D - 12.4 km.

Simplifying the equation: 0.45D - D = 0.

Solving for D: 0.45D - D = 0 -0.55D = 0 D = 0 / -0.55 D = 0 km.

Based on the given information, it seems that there is an inconsistency or error in the data provided. The calculated distance between the two cities is 0 km, which does not seem reasonable. Please double-check the information provided or provide additional details if available.

If you have any further questions, feel free to ask!