Предмет: Математика, автор: wort666of

в результаті передсвяткової акції ціну товару знижували двічі на 15%. Знайдіть початкову ціну, якщо його нова ціна становить 72,25 грн. ​

Ответы

Автор ответа: aarr04594
0

Відповідь: 100 грн.

Покрокове пояснення:

оскільки у вас написано рівень "студент", то можемо використовувати формулу складних відсотків

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Упр. 2. Узнайте более подробную информацию. Используйте вопросительные слова в скобках. Образец 1 I come home late. (Why) Why do you come home late? 1. We begin work early (When) 2. Victor often goes to the theatre. (How often) 3. Miss Robinson teaches foreign languages. (What languages) 4. I see Robert every day (Where) 5. I go to work very early. (Why) 6. I have dinner in the evening. (What time) 7. Peter wants to take some books. (Which books) 8. I come to work early (When) 9. Helen lives far from here. (Where) 10. I want something. (What) Образец 2 I want to go to the cinema. Who wants to go to the theatre? Peter does. 1. Ilike pop-music. (classical music) 2. Iknow Mr. Smith (Mr. Baxter) 3. We want to play volley-ball. (tennis) 4. Helen studies German. (French) 5. Betty (Lucy) 6. Jane speaks Spanish. (Italian) 7. Mike plays golf. (cricket)

Упр. 3. Узнайте более подробную информацию с помощью разделительных вопросов. Образец 1 Mrs. Baxter teaches German. (at the University) She teaches German at the University, doesn't she? 1. Alexlives in River Street (with his parents) 2. Jane finishes work late. (at 9 p. m.) 3. Susan likes music (classical music) sic) 4. John plays football (well) 5. My son studies at the University (maths) 6. Mary often goes to the country. (at the weekend) Образец 2 Kitty speaks English well. (write) But she doesn't write well, does she? 1. She wants tea. (a cake) 2. Donald speaks Polish (Hungarian) 3. Mrs. Black likes music. (jazz) 4. Betty always helps Susan. (Mary) 5. I know the Blacks. (the Baxters) 6. Jack plays football. (hockey)