Question

Полный бидон с молоком весит 4кг. Тот же бидон заполненный на половину весит 3кг 250г. Сколько весит бидон?Запишите решение плиз.

Answer 1

4 кг это 4000г
4000-3250=750г это половина молока
750+750=1500г молока в полном бидоне
4000-1500=2500г или 2,5кг вес бидона.

Answer 2

Problem Analysis

We are given that a full can of milk weighs 4 kg and that the same can, when filled halfway, weighs 3 kg 250 g. We need to determine the weight of the can itself.

Solution

Let's assume the weight of the empty can is x kg.

According to the given information: - A full can of milk weighs 4 kg. - A can filled halfway weighs 3 kg 250 g.

We can set up the following equation to represent the given information:

x + 4 kg = x + 3 kg 250 g

To solve this equation, we need to convert 3 kg 250 g to kilograms. Since 1 kg is equal to 1000 g, we can convert 250 g to kg by dividing it by 1000:

3 kg 250 g = 3 kg + 250 g / 1000 = 3 kg + 0.25 kg = 3.25 kg

Now, we can rewrite the equation:

x + 4 kg = x + 3.25 kg

To isolate x, we can subtract x from both sides of the equation:

4 kg = 3.25 kg

Subtracting 3.25 kg from both sides:

4 kg - 3.25 kg = x

0.75 kg = x

Therefore, the weight of the empty can is 0.75 kg.

Answer

The weight of the empty can is 0.75 kg.