Question

Одна скважина на 3,4 м глубже другой. Если глубину первой скважины увеличить на 21,6 м, а второй — в 3 раза, то обе скважины будут иметь одинаковую глубину. Найдите глубину каждой скважины.Составишь уравнение и таблицу!!!!!!!Заранее спасибо решите только правильно!!!!!!!И быстро!!!!!!

Answer 1

Х-глубина второй скважины
х+3,4-глубина первой скважины

(х+3,4)+21,6=3х
3х-х=21,6+3,4
2х=25
х=25:2
х=12,5 м глубина второй скважины
12,5+3,4=15,9 м глубина первой скважины

Answer 2

Problem Analysis

We are given two wells, and the depth of one well is 3.4 meters greater than the other. If we increase the depth of the first well by 21.6 meters and the depth of the second well by 3 times, the two wells will have the same depth. We need to find the depth of each well.

Solution

Let's assume the depth of the first well is x meters. Then the depth of the second well will be x - 3.4 meters.

According to the problem, if we increase the depth of the first well by 21.6 meters, it will be x + 21.6 meters deep. And if we increase the depth of the second well by 3 times, it will be (x - 3.4) + 3(x - 3.4) meters deep.

Now we can set up an equation to solve for x:

x + 21.6 = (x - 3.4) + 3(x - 3.4)

Let's solve this equation step by step:

x + 21.6 = x - 3.4 + 3x - 10.2

Combining like terms:

x + 21.6 = 4x - 13.6

Subtracting x from both sides:

21.6 = 3x - 13.6

Adding 13.6 to both sides:

35.2 = 3x

Dividing both sides by 3:

x = 11.73

So, the depth of the first well is approximately 11.73 meters.

To find the depth of the second well, we can substitute the value of x into the expression x - 3.4:

11.73 - 3.4 = 8.33

Therefore, the depth of the second well is approximately 8.33 meters.

Answer

The depth of the first well is approximately 11.73 meters, and the depth of the second well is approximately 8.33 meters.