Question

купили 9 кг капусты и 4 кг свёклы за всю покупку заплатили 350 руб. Сколько стоит килограмм свеклы если килограмм капусты стоят 30 руб​

Answer 1

Problem Analysis

To solve this problem, we need to find the cost per kilogram of beets (свекла) given that the cost per kilogram of cabbage (капуста) is 30 rubles. We know that a total of 9 kg of cabbage and 4 kg of beets were purchased for a total cost of 350 rubles.

Solution

To find the cost per kilogram of beets, we can use the following steps:

1. Calculate the total cost of cabbage: 9 kg * 30 rubles/kg = 270 rubles. 2. Subtract the cost of cabbage from the total cost of the purchase to find the cost of beets: 350 rubles - 270 rubles = 80 rubles. 3. Divide the cost of beets by the weight of beets to find the cost per kilogram of beets: 80 rubles / 4 kg = 20 rubles/kg.

Therefore, the cost per kilogram of beets is 20 rubles/kg.

Conclusion

The cost per kilogram of beets is 20 rubles/kg, given that the cost per kilogram of cabbage is 30 rubles/kg.