Вопрос школьника по предмету Математика
Мистер Фокс сделал для дяди с тетей в подарок сладости: пирожных и тортиков вместе было 7 штук, зефирок и тортиков – 9, а пирожных и зефирок – 6. Сколько всего было сладостей?
Ответ учителя по предмету Математика
Пирожные=П, зефир=З, торты=Т
П+Т=7
З+Т=9
П+З=6
П=7-Т
З=9-Т
П+З=6, т.е. 7-Т+9-Т=6
7+9-6-2Т=0
10=2Т
Т=5
П=2
З=4
5+2+4=11
Ответ: 11
Похожие вопросы от пользователей
Первый рабочий работал на выполнениея етой задачи 6 дней, после чего работу закончил второй робитник. За сколько дней было выполнено задание?
MODEL: + The student is speaking to his friend at the moment.
? Is the student speaking to his friend at the moment?
– The student is not speaking to his friend at the moment.
1. We are doing very well in languages. 2. I’m speaking English too slowly today. 3. Her English is getting better. 4. The travel agent is waiting for you. 5. The students are trying to grasp the difference. 6. I’m answering your question. 7. You are asking another question. 8. The booking agent is speaking over the phone right now. 9. The students are thinking about their careers at the moment. 10. The ticket agent is working on the computer now. 11. I’m spelling this word correctly. 12. My spelling and pronunciation are getting better.