Question

купили 0.8 кг колбасы и 0.3 кг сыра за всю покупку заплотили 3.28 тыс руб известно что 1 кг колбасы дешевле чем 1 кг сыра на 0.3 тыс руб сколько стоит 1 кг сыра

Answer 1

пусть 1 кг сыра стоит х рублей, тогда 1 кг колбасы стоит (х-300) рублей, по условии задачи складываем уравнение:

0.8*(х-300)+0.3*х=3280

0.8х-240+0.3х=3280

1.1х-240=3280

1.1х=3280+240

1.1х=3480

х=3520\1.1

х=3200

Ответ: 3200 рублей стоит 1 кг сыра

Answer 2

Calculation of the Cost of Cheese

To calculate the cost of 1 kg of cheese, we need to use the given information. Let's break down the problem step by step:

1. The total purchase cost is 3.28 thousand rubles. 2. The weight of the purchased sausage is 0.8 kg. 3. The weight of the purchased cheese is 0.3 kg. 4. It is known that 1 kg of sausage is cheaper than 1 kg of cheese by 0.3 thousand rubles.

Now, let's calculate the cost of 1 kg of cheese.

1. Calculate the cost of the purchased sausage: - The cost of 0.8 kg of sausage can be calculated by dividing the total purchase cost by the sum of the weights of the sausage and cheese: ``` cost_of_sausage = (total_purchase_cost / (weight_of_sausage + weight_of_cheese)) * weight_of_sausage ```

2. Calculate the cost of the purchased cheese: - Since 1 kg of sausage is cheaper than 1 kg of cheese by 0.3 thousand rubles, we can calculate the cost of 1 kg of cheese as follows: ``` cost_of_cheese = cost_of_sausage + 0.3 ```

Let's calculate the cost of 1 kg of cheese using the given information.

Calculation:

Given: - Total purchase cost: 3.28 thousand rubles - Weight of sausage: 0.8 kg - Weight of cheese: 0.3 kg - Difference in price between 1 kg of sausage and 1 kg of cheese: 0.3 thousand rubles

1. Calculate the cost of the purchased sausage: ``` cost_of_sausage = (3.28 / (0.8 + 0.3)) * 0.8 cost_of_sausage = 2.24 thousand rubles ```

2. Calculate the cost of 1 kg of cheese: ``` cost_of_cheese = cost_of_sausage + 0.3 cost_of_cheese = 2.24 + 0.3 cost_of_cheese = 2.54 thousand rubles ```

Answer:

Therefore, 1 kg of cheese costs 2.54 thousand rubles.

Please note that the provided answer is based on the given information and calculations.