Question

Бауржан за 5 тетрадей и 2 альбома заплатил 400тг. Меруерт за такие же 3 тетради и 2 альбома заплатила 360 тг. Сколько стоит тетрадь? Сколько стоит альбом?

Answer 1

Стоимость1 тетради (400-360):2=20 тг.
стоимость 2 альбомов  400-(20*5)=300тг
стоимость 1 альбома  300:2=150тг

Answer 2

Calculating the Cost of Notebooks and Albums

To calculate the cost of a notebook and an album, we can use the given information about the total cost paid by Baurzhan and Meruert for a certain number of notebooks and albums.

Let's denote the cost of a notebook as x and the cost of an album as y.

We are given the following information: - Baurzhan bought 5 notebooks and 2 albums for 400 TG. - Meruert bought 3 notebooks and 2 albums for 360 TG.

We can set up a system of equations to solve for the cost of a notebook and an album.

Solving the System of Equations

We can set up the following system of equations based on the given information:

1. 5x + 2y = 400 2. 3x + 2y = 360

Subtracting the second equation from the first, we get: (5x + 2y) - (3x + 2y) = 400 - 360 2x = 40 x = 20

Now that we have found the cost of a notebook (x), we can substitute this value back into one of the original equations to solve for the cost of an album.

Using the second equation: 3(20) + 2y = 360 60 + 2y = 360 2y = 360 - 60 2y = 300 y = 150

Conclusion

Based on the given information, the cost of a notebook is 20 TG and the cost of an album is 150 TG.