Question

Для учеников 4 касса купили тетради в линейку и в клетку - всего 480 штук . Тетрадей в линейку было в 3 раза больше,чем в клетку . Сколько купили тетрадей каждого вида . Решить задачу уравнением .

Answer 1

Х+3х = 480
4х= 480
х= 480 :4
х = 120 в клетку
120 * 3 = 360 в линейку

Answer 2

Problem Analysis

We are given that a total of 480 notebooks were purchased for 4th-grade students. The number of notebooks in a ruled (linyuk) format was three times the number of notebooks in a grid (kletka) format. We need to find the number of notebooks purchased for each type.

Solution

Let's assume the number of notebooks in a grid format is x. According to the problem, the number of notebooks in a ruled format is three times the number of notebooks in a grid format. Therefore, the number of notebooks in a ruled format is 3x.

We know that the total number of notebooks purchased is 480. So, we can set up the following equation:

x + 3x = 480

Simplifying the equation, we get:

4x = 480

Now, we can solve this equation to find the value of x.

Calculation

To find the value of x, we divide both sides of the equation by 4:

x = 480 / 4

Simplifying, we get:

x = 120

Therefore, the number of notebooks in a grid format is 120.

To find the number of notebooks in a ruled format, we multiply the value of x by 3:

3x = 3 * 120 = 360

Therefore, the number of notebooks in a ruled format is 360.

Answer

The number of notebooks purchased for each type is as follows: - Grid format (kletka): 120 notebooks - Ruled format (linyuk): 360 notebooks