Question

Оля вымыла в 2 раза больше тарелок, чем Вера, а Ира на 2 тарелки меньше, чем Вера. Всего они вымыли 26 тарелок. Сколько тарелок вымыла Вера ?

Answer 1

Вера вымыла: х
Оля вымыла: 2х
Ира вымыла: х-2
Всего вымыли 26 тарелок

х+2х+(х-2)=26
х+2х+х-2=26
4х-2=26
4х=28
х=7

Вера вымыла 7 тарелок

Answer 2

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Answer 3

Calculating the Number of Plates Washed by Vera

To calculate the number of plates washed by Vera, we can use the information provided in the question and the total number of plates washed by all three individuals.

Let's denote: - The number of plates washed by Olga as O - The number of plates washed by Vera as V - The number of plates washed by Ira as I

We are given the following information: 1. Olga washed twice as many plates as Vera: O = 2V 2. Ira washed 2 plates less than Vera: I = V - 2 3. The total number of plates washed by all three is 26: O + V + I = 26

Solving for the Number of Plates Washed by Vera

We can use the given information to solve for the number of plates washed by Vera.

First, we can express O and I in terms of V using the given relationships: - O = 2V - I = V - 2

Substituting these expressions into the total number of plates equation: 2V + V + (V - 2) = 26

Solving for V: 4V - 2 = 26 4V = 28 V = 7

Conclusion

Vera washed 7 plates.

The calculation shows that Vera washed 7 plates.