Question

СРОЧНО!!! Решите пожалуйста задачи.: после повышения цен на 10% костюм стал стоить 2750 рублей. Сколько рублей стоил этот костюм до повышения цен? На сколько рублей увеличилась его цена?В первой вазе лежало 9 яблок, во второй—на 2 яблока больше, чем в первой, в в третьей вазе—в 4 раза меньше, чем в первой и второй вазах вместе. Сколько яблок лежало в 4 вазе, если во всех 4 вазах лежало 32 яблока.

Answer 1

2750-110%
? - 100%
рЕШЕНИЕ: 2750*100=275000
275000/110 = 2500
2750-2500 = 250
Костюм стоил 2500рублей. Цена повысилась на 250 рублей

Answer 2

Task 1: Price Increase of a Suit

To find the original price of the suit before the price increase, we can use the information given. After the price increase of 10%, the suit now costs 2750 rubles. We need to calculate the original price before the increase.

Let's denote the original price of the suit as "x".

According to the information given, the new price after the increase is 2750 rubles, which is 110% of the original price:

110% of x = 2750

To find the original price, we can set up the following equation and solve for x:

1.1x = 2750

Dividing both sides of the equation by 1.1, we get:

x = 2750 / 1.1

Evaluating the expression, we find that the original price of the suit before the price increase was 2500 rubles.

To calculate the increase in price, we can subtract the original price from the new price:

Increase in price = New price - Original price = 2750 - 2500 = 250 rubles.

Therefore, the suit's price increased by 250 rubles.

Task 2: Number of Apples in the Fourth Vase

To find the number of apples in the fourth vase, we need to analyze the information given about the number of apples in each vase.

Let's denote the number of apples in the first vase as "x".

According to the information given: - The second vase has 2 more apples than the first vase. - The third vase has 4 times fewer apples than the sum of the first and second vases. - The total number of apples in all four vases is 32.

Let's calculate the number of apples in each vase step by step:

1. The second vase has 2 more apples than the first vase: x + 2. 2. The third vase has 4 times fewer apples than the sum of the first and second vases: (x + (x + 2)) / 4. 3. The total number of apples in all four vases is 32: x + (x + 2) + ((x + (x + 2)) / 4) + (x + (x + 2)) = 32.

Simplifying the equation, we get:

4x + 4 + 2x + 2 + x + 2x + 2 = 128

Combining like terms, we have:

10x + 8 = 32

Subtracting 8 from both sides of the equation, we get:

10x = 24

Dividing both sides of the equation by 10, we find:

x = 2.4

Since the number of apples must be a whole number, we can