Question

Один конверт стоит 6 рублей, второй в 3 раза больше первого, а третий на 5 рублей меньше второго. Сколько рублей стоят все три конверта вместе?

Answer 1

37 монет

6×3=18

18+6=24

18-5=13

24+13=37

Answer 2

Ответ:

Пошаговое объяснение:

Answer 3

Solution:

Let's solve this step by step.

1. Let's denote the cost of the first envelope as x. 2. The second envelope costs 3 times more than the first, so its cost is 3x. 3. The third envelope costs 5 rubles less than the second, so its cost is 3x - 5.

Now, we can calculate the total cost of all three envelopes together.

The total cost is given by the sum of the costs of all three envelopes: Total Cost = x + 3x + (3x - 5)

Solving for x: Total Cost = 7x - 5

Calculation:

Now, we can substitute the value of x and calculate the total cost.

Given that the first envelope costs 6 rubles: x = 6

Substitute x into the total cost equation: Total Cost = 7*6 - 5 = 42 - 5 = 37

So, the total cost of all three envelopes together is 37 rubles.

Answer:

Therefore, the total cost of all three envelopes together is 37 rubles.