Question

Эльвин за две книге и две тетради заплатил 18 манат. Книга дароже тетрад и в два раза. сколько стоит книго а)12 b)6 c)3

Answer 1

6 манат.          6 манат(стоимость книги) в два раза больше стоимости тетради (3 маната (6:2=3)).Стоимость книги и тетради вместе составляет 9 манат (6+3=9), а так как тетрадей было 2 шт. и  книг тоже в двойном кол-ве, то 9•2=18 манат

Answer 2

 Если книга дароже тетрад и в два раза.то тогда книго стоит  b)6 манат

   

Answer 3

Problem Analysis

Elvin bought two books and two notebooks for a total of 18 manat. The books are more expensive than the notebooks and cost twice as much. We need to determine the cost of the book.

Solution

Let's assume the cost of the book is x manat. Since the books are more expensive than the notebooks and cost twice as much, the cost of the notebook would be x/2 manat.

The total cost of two books and two notebooks is 18 manat. We can set up the following equation to represent this:

2x + 2(x/2) = 18

Simplifying the equation:

2x + x = 18 3x = 18 x = 18/3 x = 6

Therefore, the cost of the book is 6 manat.

Answer

The cost of the book is 6 manat (option b).