Question

. Решите задачу: 1) В цистерне было 38 т керосина. В первый день израсходовали в 2,4 раза больше керосина, чем во второй день. к утру третьего дня в цистерне осталось 9,1 т керосина. Сколько тонн керосина израсходовали в первый день? можно пожалуйста не уранением?​

Answer 1

Ответ: Вот в картинке и в конце 8,5*2,4 = 20,4

Answer 2

Відповідь:

20,4т

Покрокове пояснення:

x - израсходовали за второй день,

2,4x - израсходовали за первый день

38 - 9,1 = 28,9 тонн - израсходовали за два дня =>

=> x + 2,4x = 28,9

3,4x = 28,9

x = 28,9/3,4

x=8,5

следовательно, 8,5т- израсходовали за второй день

2,4 * 8,5=20,4т -израсходовали за первый день

Answer 3

Problem Analysis

To solve this problem, we need to determine the amount of kerosene consumed on the first day. We are given that there were initially 38 tons of kerosene in the tank, and by the morning of the third day, there were 9.1 tons remaining. Additionally, we are told that the amount of kerosene consumed on the first day was 2.4 times greater than the amount consumed on the second day.

Solution

Let's assume that the amount of kerosene consumed on the second day is x tons. According to the problem, the amount consumed on the first day is 2.4 times greater than x.

We can set up the following equation to represent the total amount of kerosene consumed: x + 2.4x + 9.1 = 38

Simplifying the equation, we have: 3.4x + 9.1 = 38

Subtracting 9.1 from both sides, we get: 3.4x = 28.9

Finally, dividing both sides by 3.4, we find: x ≈ 8.5

Therefore, approximately 8.5 tons of kerosene were consumed on the second day.

Answer

Approximately 8.5 tons of kerosene were consumed on the first day.

Please let me know if you need any further assistance!