Предмет: Математика, автор: naya2010

2 5/7+х=7 скольки равен х

Ответы

Автор ответа: katyakaterina518

5

Ответ:

$2 \frac{5}{7} + x = 7 \\ \frac{19}{7} + x = 7 \\ x = 7 - \frac{19}{7} \\ x = \frac{30}{7}$

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: herobrein

Выполните синтаксический разбор предложения (номер2)

1 год назад

Предмет: Английский язык, автор: Аноним

перевод текста "Education in Russia". In Russia children begin going to school at the age of seven . First they study at the Elementary School.It lasts for three or four years.
At the elementary school children get the elementary education,they learn to reed,write and count.From the fifth form the Secondary Education begins .Children begin learning different subjects such as literature chemistry physics biology foreign languages and so on. The nine-year secondary education is compulsory in our contry.
After completing the nine-year shcooling pupils can continue their studies in the tenth and eleventh forms at a general secondary schools or enter specialised colleges .
After finishing school or college young people may enter instituteor university to get the highereducation.
Except general secondary schools there are a lot of specialised schools where more attention is paid to a particular subject mostly to a foreign language.Besides there are many private schools nowadays.

1 год назад

Предмет: Русский язык, автор: sonyakey4

Что такое лексический разбор слова?

1 год назад

Предмет: Геометрия, автор: Nastyzaykova1

краткий рассказ о Венере не из интернета

7 лет назад

Предмет: Геометрия, автор: ykach78

Составьте описание видов ресурсов, характерных для Самарской области.

7 лет назад