Question

10 баллов!!в магазин привезли овощи. Когда продали 2/7 всех овощей, то их осталось на 150 кг больше, чем продали. Сколько кг овощей привезли в магазин?

Answer 1

Привезли  х  кг  овощей
Продали   2/7 ·х
Осталось  х - 2/7 ·х = 5/7 ·х
 Уравнение :  5/7·х - 2/7·х =150

3/7·х= 150  ⇒ х= 150 /(3/7)= (150 /3)·7= 50 ·7 = 350

Answer 2

Problem Analysis

To solve this problem, we need to determine the total weight of vegetables that were brought to the store. We are given that when 2/7 of all the vegetables were sold, there were 150 kg more vegetables left than what was sold. We need to find the total weight of the vegetables brought to the store.

Solution

Let's assume the total weight of vegetables brought to the store is x kg.

According to the given information, when 2/7 of all the vegetables were sold, there were 150 kg more vegetables left than what was sold. This can be represented by the equation:

(2/7)x + 150 = (5/7)x

To solve this equation, we can multiply both sides by 7 to eliminate the fractions:

7 * (2/7)x + 7 * 150 = 7 * (5/7)x

Simplifying the equation:

2x + 1050 = 5x

Subtracting 2x from both sides:

1050 = 3x

Dividing both sides by 3:

x = 350

Therefore, the total weight of vegetables brought to the store is 350 kg.

Answer

The total weight of vegetables brought to the store is 350 kg.