Question

Помогитее У Маши на 30 карандашей больше ,чем у Ани. У Коли в 2 раза меньше,чем у Ани Вместе-100 карандашей Найти кол-во карандашей каждого.

Answer 1

У Маши - 58
У Коли - 14
У Ани - 28

Решение:

Узнаем сколько у Ани: 30-2=28
Узнаем сколько у Коли 28/2=14
Узнаем сколько у Маши 28+30=58
Всего 100.

Answer 2

X карандашей у Коли, 
2x - у Ани
2x+30 - у Маши
х+2х+2х+30=100(кар)
5х=100-30
5х=70
х=70:5
х=14(кар) - у Коли
14*2=28(кар) - у Ани
100-(14+28)=68(кар) у Маши

Answer 3

Problem Analysis

We are given the following information: - Machine (Маша) has 30 more pencils than Anya (Аня). - Kolya (Коля) has half the number of pencils as Anya. - The total number of pencils between the three of them is 100.

We need to find the number of pencils each person has.

Solution

Let's assume that Anya has x pencils.

According to the given information: - Machine has 30 more pencils than Anya, so Machine has x + 30 pencils. - Kolya has half the number of pencils as Anya, so Kolya has x/2 pencils.

The total number of pencils is 100, so we can write the equation: x + (x + 30) + (x/2) = 100

To solve this equation, we can simplify it and solve for x.

Calculation

Let's solve the equation step by step:

x + (x + 30) + (x/2) = 100

Combining like terms: 2x + 30 + (x/2) = 100

Multiplying through by 2 to eliminate the fraction: 4x + 60 + x = 200

Combining like terms: 5x + 60 = 200

Subtracting 60 from both sides: 5x = 140

Dividing both sides by 5: x = 28

Now that we have found the value of x, we can substitute it back into the original equations to find the number of pencils for each person.

Anya (Аня) has x = 28 pencils. Machine (Маша) has x + 30 = 28 + 30 = 58 pencils. Kolya (Коля) has x/2 = 28/2 = 14 pencils.

Answer

Therefore, the number of pencils each person has is as follows: - Anya (Аня): 28 pencils - Machine (Маша): 58 pencils - Kolya (Коля): 14 pencils