Question

Помогите. реши задачу. В зале 12 футбольных мячей, волейбольных на 4 меньше, а теннисных -столько сколько футбольных и волейбольных вместе. Ск теннисных мячей в зале?

Answer 1

1) 12-4=8(м)-волейбольных мячей
2)12+8=20(м)
Ответ: 20 мячей волейбольных и футбольных

Answer 2

1. 12-4=8 (волейбольных мячей)
2. 12+8=20( теннисных мячей)
Ответ: 20 теннисных мячей в зале
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Я сейчас как раз пойду на тренировку - на волейбол)

Answer 3

Problem Analysis

To solve this problem, we need to determine the number of tennis balls in the room given the information about the number of footballs, volleyballs, and their relationship.

Given Information

- There are 12 footballs in the room. - The number of volleyballs is 4 less than the number of footballs. - The number of tennis balls is equal to the sum of the number of footballs and volleyballs.

Solution

Let's solve this step by step:

1. We know that the number of volleyballs is 4 less than the number of footballs. So, if we let the number of footballs be represented by x, then the number of volleyballs would be x - 4.

2. The number of tennis balls is equal to the sum of the number of footballs and volleyballs. So, the number of tennis balls would be x + (x - 4).

3. We are given that there are 12 footballs in the room. So, we can substitute x = 12 into the equation for the number of tennis balls.

4. Substituting x = 12 into the equation, we get the number of tennis balls as 12 + (12 - 4).

5. Simplifying the equation, we get 12 + 8 = 20.

Therefore, there are 20 tennis balls in the room.

Answer

There are 20 tennis balls in the room.