Question

Купили 0,8 кг колбасы и 0,3 кг сыра.За эту покупку заплатили 3.28 руб.Известно что на 1 кг на 0.3 руб.сколько стоит 1 кг сыра

Answer 1

Пусть х - цена 1 кг колбасы, х + 0,3 - цена 1 кг сыра
Составим уравнение:
0,8х + (х + 0,3) * 0,3 = 3,28
0,8х + 0,3х + 0,09 = 3,28
1,1х + 0,09 = 3,28
1,1х = 3,28 - 0,09
1,1х = 3,19
х = 2,9 (руб) - цена 1 кг колбасы
2,9 + 0,3 = 3,2 (руб) - цена 1 кг сыра

Answer 2

Calculating the Cost of 1kg of Cheese

To calculate the cost of 1kg of cheese, we can use the information provided about the purchase of 0.8kg of sausage and 0.3kg of cheese, along with the total cost of 3.28 rubles.

First, let's calculate the cost of 0.8kg of sausage and 0.3kg of cheese separately.

The cost of 0.8kg of sausage can be calculated using the total cost and the weight of the sausage: - Cost of 0.8kg of sausage = Total cost - Cost of 0.3kg of cheese

The cost of 0.3kg of cheese can be calculated using the total cost and the weight of the cheese: - Cost of 0.3kg of cheese = Total cost - Cost of 0.8kg of sausage

Next, we can use the cost of 0.3kg of cheese to calculate the cost of 1kg of cheese: - Cost of 1kg of cheese = (Cost of 0.3kg of cheese) / 0.3 * 1

Let's perform the calculations.

Calculation

- Cost of 0.8kg of sausage = 3.28 - Cost of 0.3kg of cheese - Cost of 0.3kg of cheese = 3.28 - Cost of 0.8kg of sausage - Cost of 1kg of cheese = (Cost of 0.3kg of cheese) / 0.3 * 1

Using the provided information, we can calculate the cost of 1kg of cheese.