Question

РЕШИТЕ ЗАДАЧУ для украшения ёлки ученики сделали хлопушки , фонарики и снежинки- всего 138 штук . Фонариков оказалось на 3 , а снежинок - в 3 раза больше , чем хлопушек . Сколько было сделано хлопушек ?

Answer 1

Пусть количество хлопушек - х, тогда фонариков будет - х+3, а снежинок - 3х. Всего украшений 138.
1) х+3х+(х+3)=138
5х+3=138
5х=138-3
5х=135
х=135:5
х=27 шт. - хлопушек
Ответ: сделали 27 хлопушек.

Answer 2

Problem Analysis

To solve this problem, we need to find the number of crackers (хлопушки) made by the students. We are given the total number of decorations made, which is 138. We also know that there are 3 lanterns (фонарики) and the number of snowflakes (снежинки) is three times the number of crackers. We need to determine the number of crackers made.

Solution

Let's assume the number of crackers made is x. According to the given information, the number of lanterns is 3 and the number of snowflakes is three times the number of crackers.

We can set up the following equation to represent the given information: x + 3 + 3x = 138

Simplifying the equation: 4x + 3 = 138 4x = 138 - 3 4x = 135 x = 135 / 4

Therefore, the number of crackers made is 33.

Answer

The students made a total of 33 crackers (хлопушки) for decorating the Christmas tree.