Вопрос школьника по предмету Алгебра
Реши задачу, выделяя три этапа математического моделирования:
«Расстояние между городами мотоциклист проехал за 2 ч., а велосипедист проехал за 5 ч. Скорость велосипедиста на 24 км/ч меньше скорости мотоциклиста. Определи скорости велосипедиста и мотоциклиста и расстояние между городами».
Ответ:
скорость велосипедиста
км/ч;
скорость мотоциклиста
км/ч;
расстояние между городами
км.
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Задание 2. Найдите ошибки и исправьте их.
1. What time will the concert start?
2. The teacher asked Andrew to do the exercise twelve
3. It is something I want to tell you
4. There is little cheese in the fridge.
5. The doctor told my aunt to eat less tomatoes
6. There are hundred of stones in his collection.
7. How many tests have you had three days ago?
8. What do you want to say us?
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Большое спасибо!
0.5 — 2 × (-7) + 2/3 : 2 3/4 × 11/12