Question

У першому баку 138 л води, а в другому - 148 л Щохвилини з першого бака виливаеться 3 л зоги, а з другого - 4 л. Через скільки хвилин у першому води стане в 1,5 раза більше, ніж у другому?​

Answer 1

Ответ:

незнаю, я новенький и не понимаю как отвечать на такие вопросы, и ла какой клас?

Answer 2

Problem Analysis

We have two tanks, the first one contains 138 liters of water and the second one contains 148 liters of water. Every minute, 3 liters of water are poured out from the first tank and 4 liters of water are poured out from the second tank. We need to determine how many minutes it will take for the amount of water in the first tank to become 1.5 times greater than the amount of water in the second tank.

Solution

Let's assume that it takes 'x' minutes for the amount of water in the first tank to become 1.5 times greater than the amount of water in the second tank.

After 'x' minutes, the amount of water poured out from the first tank will be 3 liters per minute multiplied by 'x' minutes, which is 3x liters. Similarly, the amount of water poured out from the second tank will be 4 liters per minute multiplied by 'x' minutes, which is 4x liters.

The amount of water remaining in the first tank after 'x' minutes will be 138 liters minus 3x liters, and the amount of water remaining in the second tank after 'x' minutes will be 148 liters minus 4x liters.

According to the problem, the amount of water in the first tank after 'x' minutes should be 1.5 times greater than the amount of water in the second tank after 'x' minutes. Mathematically, this can be represented as:

(138 - 3x) = 1.5 * (148 - 4x)

Now, let's solve this equation to find the value of 'x'.

138 - 3x = 1.5 * 148 - 1.5 * 4x 138 - 3x = 222 - 6x 3x - 6x = 222 - 138 -3x = 84 x = -84 / -3 x = 28

Therefore, it will take 28 minutes for the amount of water in the first tank to become 1.5 times greater than the amount of water in the second tank.

Answer

After 28 minutes, the amount of water in the first tank will be 1.5 times greater than the amount of water in the second tank.