Question

за три дня турист прошел 46 км,в первый день он прошел в два раза больше чем во второй а в третий на 4 км меньше чем в первый сколько км он прошел в третий день (решить задачу с помощью уравнения)

Answer 1

Ответ:

Во второй день прошел х км, в первый 2х км, в третий 2х-4 км. Всего 46 км.

х+2х+2х-4=46

5х=50

Х=10 км во 2й день

10×2=20 в 1й день

20-4=16 в 3й день

Answer 2

Problem Analysis

We are given that a tourist walked a total of 46 km over three days. On the first day, the tourist walked twice as much as on the second day, and on the third day, the tourist walked 4 km less than on the first day. We need to find out how many kilometers the tourist walked on the third day.

Solution

Let's assume that the distance walked on the second day is x km. According to the given information, the distance walked on the first day is twice that of the second day, so it is 2x km. The distance walked on the third day is 4 km less than the distance walked on the first day, so it is (2x - 4) km.

We know that the total distance walked over the three days is 46 km. Therefore, we can write the equation:

x + 2x + (2x - 4) = 46

Simplifying the equation:

5x - 4 = 46

Adding 4 to both sides:

5x = 50

Dividing both sides by 5:

x = 10

So, the distance walked on the second day is 10 km.

To find the distance walked on the third day, we substitute the value of x back into the equation:

2x - 4 = 2(10) - 4 = 20 - 4 = 16

Therefore, the tourist walked 16 km on the third day.

Answer

The tourist walked 16 km on the third day.