Вопрос задан 12.09.2018 в 12:02. Предмет Математика. Спрашивает Лысов Алексей.

В 5 б классе из 27 учащихся 3 получили за контр по математики в 6 раз сеньше человек чем 4 и в 2

раза меньше чем 5
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Отвечает Алиева Злата.


Тройки - х учащихся

Четвёрки - 6х учащихся (в 6 раз больше, чем троек)

Пятёрки - 2х учащихся (в 2 раза больше, чем троек)

х + 6х + 2х = 27

9х = 27

х = 27 : 9

х = 3 - трое учащихся получили тройки

6 * 3 = 18 - восемнадцать учащихся получили четвёрки

2 * 3 = 6 - шестеро учащихся получили пятёрки

Проверка: 3 + 18 + 6 = 27 учащихся в классе.

Ответ: "3" - 3 уч.; "4" - 18 уч.; "5" - 6 уч.

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Отвечает Медведев Роман.
Х-троек
6х-четверок
2х-пятерок
х+6х+2х=27
9х=27
х=3-троек
3*6=18-четверок
3*2=6-пятерок
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Отвечает нейросеть ChatGpt. Будьте внимательны, ответы нейросети могут содержать ошибочные или выдуманные данные.

Understanding the Question

The question states that in a 5th-grade class of 27 students, 3 students received a math test score that is 6 times less than the number of students who received a score of 4, and 2 times less than the number of students who received a score of 5. The task is to determine the number of students who received each score.

Solution

Let's break down the information given in the question:

- Total number of students in the class: 27 - Number of students who received a score of 4: Unknown - Number of students who received a score of 5: Unknown - Number of students who received a score 6 times less than the number of students who received a score of 4: 3 - Number of students who received a score 2 times less than the number of students who received a score of 5: Unknown

To solve this problem, we need to find the values of the unknowns.

Let's assume the number of students who received a score of 4 is x and the number of students who received a score of 5 is y.

From the given information, we can form the following equations:

1. Number of students who received a score 6 times less than the number of students who received a score of 4: 3 - x - 6 = 3

2. Number of students who received a score 2 times less than the number of students who received a score of 5: Unknown - y - 2 = Unknown

To find the values of x and y, we need to solve these equations.

Solving the Equations

From equation 1, we can solve for x:

x - 6 = 3 x = 3 + 6 x = 9

So, the number of students who received a score of 4 is 9.

Now, let's solve equation 2 to find the value of y:

y - 2 = Unknown

Since the question does not provide a specific value for the number of students who received a score 2 times less than the number of students who received a score of 5, we cannot determine the exact value of y.

Answer

Based on the given information, we can conclude that the number of students who received a score of 4 is 9. However, we cannot determine the exact number of students who received a score of 5 without additional information.

Please note that the solution provided is based on the given information and assumptions made. If there are any additional details or constraints, please provide them for a more accurate answer.

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