Question

Для приготовления сладкой воды Игорь, Роберт и Влад использовали сироп, добавляя его в воду. За первый час Игорь добавил в воду 40% всего запаса сиропа, а Роберт и Влад вместе за это же время использовали 300 миллилитров сиропа. За следующий час Игорь добавил в воду 80% от оставшегося сиропа, а Роберт и Влад использовали 100 миллилитров сиропа на двоих. В итоге осталось 800 миллилитров сиропа. Выразите 0.1 литра в миллилитрах. Ответ округлите до целых. Сколько было сиропа? Ответ выразить в литрах, округлив до десятых. надеюсь скоро

Answer 1

Ответ:40%+300+80%+100

Объяснение:

800

Answer 2

Calculation of Syrup Used

To calculate the amount of syrup used by Igor, Robert, and Vlad, we will break down the information provided step by step.

1. In the first hour, Igor added 40% of the total syrup supply to the water. 2. Robert and Vlad together used 300 milliliters of syrup in the same time period. 3. In the next hour, Igor added 80% of the remaining syrup to the water. 4. Robert and Vlad together used 100 milliliters of syrup in the second hour. 5. At the end, there were 800 milliliters of syrup remaining.

Let's calculate the amount of syrup used by Igor, Robert, and Vlad.

Step 1: Igor's syrup usage in the first hour Igor added 40% of the total syrup supply to the water. Let's assume the total syrup supply is represented by 'x' liters.

The amount of syrup Igor added in the first hour = 40% of x liters = 0.4x liters.

Step 2: Syrup used by Robert and Vlad in the first hour Robert and Vlad together used 300 milliliters of syrup in the first hour.

Step 3: Igor's syrup usage in the second hour Igor added 80% of the remaining syrup to the water. The remaining syrup after the first hour = Total syrup supply - Syrup used by Igor in the first hour - Syrup used by Robert and Vlad in the first hour.

Remaining syrup = x liters - 0.4x liters - 0.3 liters (300 milliliters converted to liters) = (1 - 0.4 - 0.3)x liters = 0.3x liters.

The amount of syrup Igor added in the second hour = 80% of the remaining syrup = 0.8 * 0.3x liters = 0.24x liters.

Step 4: Syrup used by Robert and Vlad in the second hour Robert and Vlad together used 100 milliliters of syrup in the second hour.

Step 5: Calculation of remaining syrup At the end, there were 800 milliliters of syrup remaining.

800 milliliters = 0.8 liters.

Now, let's calculate the total amount of syrup used by Igor, Robert, and Vlad.

Total syrup used = Syrup used by Igor in the first hour + Syrup used by Igor in the second hour + Syrup used by Robert and Vlad in the first hour + Syrup used by Robert and Vlad in the second hour.

Total syrup used = 0.4x liters + 0.24x liters + 0.3 liters + 0.1 liters.

Since the remaining syrup is 0.8 liters, we can equate the total syrup used to the initial syrup supply minus the remaining syrup.

0.4x liters + 0.24x liters + 0.3 liters + 0.1 liters = x liters - 0.8 liters.

Simplifying the equation:

0.74x liters + 0.4 liters = x liters - 0.8 liters.

0.74x liters - x liters = -0.8 liters - 0.4 liters.

-0.26x liters = -1.2 liters.

x = (-1.2 liters) / (-0.26) liters.

x ≈ 4.615 liters.

Therefore, the initial syrup supply was approximately 4.615 liters.

To convert 0.1 liters to milliliters, we multiply by 1000:

0.1 liters * 1000 = 100 milliliters.

So, 0.1 liters is equal to 100 milliliters.

To convert the initial syrup supply to liters, we round to the nearest tenth:

4.615 liters ≈ 4.6 liters.

Therefore, the initial syrup supply was approximately 4.6 liters.

In summary: - The initial syrup supply was approximately 4.6 liters. - The amount of syrup remaining at the end was 800 milliliters. - 0.1 liters is equal to 100 milliliters.