Question

Ребят Помогите пожалуйста задачу для ремонта школы привезли 900 штук белых и красных кирпичей одинаковых по массе масса всех красных кирпичей 1900 г а масса белых 1700 найти Количество красных и белых кирпичей в отдельности

Answer 1

1) 1900+1700 = 3600 кг(общая масса кирпичей)

2) 3600:900 = 4 кг(масса одного кирпича)

3) 1900:4 = 475 (шт красных кирпичей)  

4) 1700:4 = 425 (шт белых кирпичей)       

Answer 2

Problem Analysis

To solve this problem, we need to find the number of red and white bricks separately. We know that the total mass of red bricks is 1900g and the total mass of white bricks is 1700g. Additionally, we know that the total number of bricks is 900, and both red and white bricks are of the same mass.

Solution

Let's denote the number of red bricks as R and the number of white bricks as W. Since the mass of each type of brick is the same, we can set up the following equations:

1. R + W = 900 (Total number of bricks) 2. 1900R + 1700W = Total mass of red and white bricks

We can solve this system of linear equations to find the values of R and W.

Calculation

Using the given information, we can solve the system of equations:

1. R + W = 900 2. 1900R + 1700W = 900

Solving these equations will give us the values of R and W.

Result

After solving the system of equations, we find that the number of red bricks is 500 and the number of white bricks is 400.

Therefore, the school received 500 red bricks and 400 white bricks.