Question

Стол в 9 раз дороже стула вместе они стоят 40 руб сколько стоит стул?

Answer 1

Пусть стул стоит x (руб), тогда стол стоит 9x (руб).
Составим уравнение:
x + 9x = 40
10x = 40
x = 40 ÷ 10
x = 4 (руб) - стоит стул
Ответ: 4 рубля стоит стул.

Answer 2

40 : ( 9 + 1 ) = 4 ( руб ) стоимость стула
Ответ 4 руб

Answer 3

Calculating the Cost of the Chair

To calculate the cost of the chair, we can use the given information that the table is 9 times more expensive than the chair and together they cost 40 rubles.

Let's denote the cost of the chair as C and the cost of the table as T.

We are given the following equation: T = 9C (the table is 9 times more expensive than the chair)

We also know that: T + C = 40 (together they cost 40 rubles)

Solving the Equations

We can use the second equation to express T in terms of C: T = 40 - C

Substituting this into the first equation: 40 - C = 9C

Solving for C: 40 = 10C C = 4

Conclusion

The cost of the chair is 4 rubles.