Question

В театре билеты продаются по цене 30 руб.и 40 руб.Всего в театре 12 рядов по 25 мест в каждом ряду.Общая стоимость всех билетов равна 10000 руб.Сколько билетов продаётся по 40 руб?

Answer 1

12:2=6
6*25=150
150*40=6000руб
Ответ:6000руб

Answer 2

Calculation of the Number of Tickets Sold at 40 Rubles

To calculate the number of tickets sold at 40 rubles, we need to consider the total cost of all the tickets and the prices of the tickets.

According to the given information: - The tickets are sold at two prices: 30 rubles and 40 rubles. - The total cost of all the tickets is 10,000 rubles.

Let's assume that the number of tickets sold at 30 rubles is x and the number of tickets sold at 40 rubles is y.

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

1. The total cost equation: - 30x + 40y = 10,000

2. The equation for the number of tickets: - x + y = total number of tickets

To solve these equations, we need to find the values of x and y.

Solution:

To find the number of tickets sold at 40 rubles, we can use the method of substitution or elimination.

Let's use the method of substitution:

From the second equation, we can express x in terms of y: - x = total number of tickets - y

Substituting this value of x into the first equation, we get: - 30(total number of tickets - y) + 40y = 10,000

Simplifying the equation: - 30(total number of tickets) - 30y + 40y = 10,000 - 30(total number of tickets) + 10y = 10,000 - 10y = 10,000 - 30(total number of tickets) - y = (10,000 - 30(total number of tickets))/10

Now, we can substitute the value of y back into the equation for the number of tickets to find the value of x: - x = total number of tickets - y

Using these equations, we can calculate the number of tickets sold at 40 rubles.

Please provide the total number of tickets in order to proceed with the calculation.