Question

Молоко и сметана вместе стоят 97,9 руб. Стоимость молока в 1,2 раза меньше стоимости сметаны. На сколько рублей сметана дороже молока? Решить уравнением!!!!!! ПОЖАЛУЙСТА ОЧЕНЬ НАДО

Answer 1

1) х - стоимость молока
1,2х - стоимость сметаны
По условию получим:
х + 1,2х = 97,9
2,2х = 97,9
х = 44,5 
44,5 рубля - стоимость молока

2) 44,5 * 1,2 = 53,4 (руб.) - стоимость сметаны

3) 53,4 - 44,5 = 8,9 (руб.) - разница в цене

Ответ: на 8,9 рубля сметана дороже молока

Answer 2

Problem Analysis

We are given that the combined cost of milk and sour cream is 97.9 rubles. The cost of milk is 1.2 times less than the cost of sour cream. We need to determine the price difference between sour cream and milk.

Solution

Let's assume the cost of milk is x rubles. According to the given information, the cost of sour cream is 1.2 times more than the cost of milk.

The cost of sour cream can be calculated as 1.2 * x.

The combined cost of milk and sour cream is 97.9 rubles, so we can write the equation:

x + 1.2 * x = 97.9

Simplifying the equation:

2.2 * x = 97.9

To find the value of x, we divide both sides of the equation by 2.2:

x = 97.9 / 2.2

Now we can calculate the value of x and find the cost of milk.

Calculation

Let's calculate the cost of milk:

x = 97.9 / 2.2 = 44.5

The cost of milk is 44.5 rubles.

To find the cost of sour cream, we multiply the cost of milk by 1.2:

Cost of sour cream = 1.2 * 44.5 = 53.4

Answer

The cost of sour cream is 53.4 rubles, which is 53.4 - 44.5 = 8.9 rubles more than the cost of milk.