Question

Стоимость 6 одинаковых тетрадей а руб. Сколько надо заплатить за b тетрадей по той же цене? Вычисли ответ а = 69 и b = 11.

Answer 1

      цена тетради=а/6 руб

b*а/6 надо    заплатить за b тетрадей    по той же цене

 

цена тетради=69/6=11,5 руб

11*69/6=126,5 руб надо заплатить за 11 тетрадей по той же цене

Answer 2

Составим уравнение:

х*6=а => х*6=69 

Х=69:6

х= 11,5(стоит одна тетрадь)

 

11,5*b=y

11,5*11=126,5(рублей за 11 тетрадей)

Ответ: за 11 тетрадей нужно заплатить 126,5 рублей.

 

Answer 3

Calculation of the Cost of b Notebooks

To calculate the cost of b notebooks at the same price as 6 notebooks, we need to know the cost of 6 notebooks. According to the information provided, a = 69, which represents the cost of 6 notebooks, and b = 11.

To find the cost of b notebooks, we can set up a proportion:

6 notebooks / a = b notebooks / x

We can cross-multiply and solve for x:

6x = ab

Substituting the given values:

6x = 69 * 11

Simplifying the equation:

6x = 759

Dividing both sides by 6:

x = 759 / 6

Calculating the value of x:

x = 126.5

Therefore, the cost of b notebooks at the same price as 6 notebooks is 126.5 rubles.

Please note that the given values of a = 69 and b = 11 are used in this calculation.