Question

в театральной студии занимаются мальчики и девочки . Отношение числа мальчиков к числу девочек равно 1:3 . Сколько в студии мальчиков, если девочек на 12 больше? Пожалуйста, помогите решить задачу по действиям

Answer 1

Нашел в тетрадке:)
Уравнение.
Пусть х мальчиков в студии 
3х-х=12
2х=12
х=6
Ответ:в студии 6 мальчиков.

Answer 2

Problem Analysis

We are given that the ratio of the number of boys to the number of girls in a theater studio is 1:3. We are also told that the number of girls is 12 more than the number of boys. We need to find the number of boys in the studio.

Solution

Let's assume the number of boys in the studio is x. Since the ratio of boys to girls is 1:3, the number of girls can be calculated as 3x. We are also given that the number of girls is 12 more than the number of boys, so we can set up the following equation:

3x = x + 12

Simplifying the equation, we get:

2x = 12

Dividing both sides of the equation by 2, we find:

x = 6

Therefore, there are 6 boys in the theater studio.

Answer

There are 6 boys in the theater studio.