Question

Помогите. В первой пачке была 31 тетрадь.Это на 5 тетрадей больше,чем во второй пачке.и на 5 тетрадей меньше,чем в третьей пачке.Сколько тетрадей было в трёх пачках вместе?

Answer 1

1)31-5=26(во 2 пачке)
2)31+5=36(в 3 пачке)
3)31+26+36=93 (во всех 3 пачках)

Answer 2

31+26+36=93
eeeeeeeeeeee

Answer 3

Problem Analysis

We are given information about the number of notebooks in three packs. The first pack has 31 notebooks, which is 5 more than the second pack and 5 less than the third pack. We need to find the total number of notebooks in all three packs.

Solution

Let's denote the number of notebooks in the second pack as x. According to the given information, the first pack has 5 more notebooks than the second pack, so the first pack has x + 5 notebooks. Similarly, the third pack has 5 more notebooks than the first pack, so the third pack has (x + 5) + 5 = x + 10 notebooks.

To find the total number of notebooks in all three packs, we add up the number of notebooks in each pack: x + (x + 5) + (x + 10).

Simplifying the expression, we get: 3x + 15.

Therefore, the total number of notebooks in all three packs is 3x + 15.

Calculation

To find the value of x, we can use the information given in the problem. We know that the first pack has 31 notebooks, so we substitute x + 5 with 31 in the equation: 3x + 15 = 31.

Solving this equation, we find: 3x = 16, x = 16/3.

Since the number of notebooks must be a whole number, we round x to the nearest whole number. Therefore, x = 6.

Answer

The total number of notebooks in all three packs is 3x + 15 = 3(6) + 15 = 18 + 15 = 33.

Therefore, there are 33 notebooks in the three packs combined.