Question

Половина всех яблок была продана в магазине в первый же день. На второй день была продана 1/3 оставшихся яблок. Тогда в магазине осталось 130 кг яблок. Сколько килограммов яблок изначально было в магазине? ПОМОГИТЕ

Answer 1

Ответ:

Пошаговое объяснение:

Все яблоки = х кг

1-ый день = 1/2х кг

2-ой день = 1/3 * (х - 1/2х) = 1/3 * 1/2х = 1/6х кг

1/2х + 1/6х + 130 = х

3/6х + 1/6х + 130 = х

4/6х + 130 = х

4/6х - х = -130

-2/6х = -130

х = -130 : (-2/6)

х = -130 * (-6/2)

х = -65 * (-6/1)

х = 390/1

х = 390

Все яблоки = (х) = 390 кг

1 день = (1/2х) = 1/2 * 390 = 390/2 = 195 кг

2 день = (1/6х) = 1/6 * 390 = 390/6 = 65 кг

390 - (195 + 65) = 390 - 260 = 130 (кг) - осталось

Answer 2

Ответ:390кг яблок всего

Пошаговое объяснение:

Если надо решение легче и без х

1-1/3=2/3, поэтому 130 -это 2/3 яблок, которые оставались на второй день, поэтому:

1)130:2×3=195(кг) -половина всех яблок и остаток после продажи в первый день;

2)195×2=390(кг) - всего яблок

Answer 3

Problem Analysis

We are given the following information: - Half of all the apples were sold on the first day. - On the second day, 1/3 of the remaining apples were sold. - There were 130 kg of apples left in the store after the second day.

We need to determine the initial weight of the apples in the store.

Solution

Let's assume the initial weight of the apples in the store is x kg.

According to the given information: - Half of the apples were sold on the first day, so x/2 kg of apples were sold. - After the first day, there were x/2 kg of apples remaining. - On the second day, 1/3 of the remaining apples were sold, so (1/3) * (x/2) kg of apples were sold. - After the second day, there were 130 kg of apples remaining, so (x/2) - (1/3) * (x/2) = 130 kg.

To find the initial weight of the apples (x), we can solve the equation:

(x/2) - (1/3) * (x/2) = 130

Let's solve this equation to find the value of x.

Calculation

(x/2) - (1/3) * (x/2) = 130

Multiplying through by 6 to eliminate fractions:

3x - 2x = 780

Simplifying:

x = 780

Answer

The initial weight of the apples in the store was 780 kg.

Please let me know if I can help you with anything else.