Турист вышел из лагеря и первые 5 км прошел со скоростью 8 км/ч. Следующие 15 км – со скоростью 6 км/ч. Потом он остановился на ночь и не двигался в течение 10 часов. Сверившись с картой, турист обнаружил, что прошёл половину пути до вулкана. Оставшийся путь он прошёл со скоростью 5 км/ч. Чему была равна его средняя скорость на пути от лагеря до вулкана? Ответ выразите в км/ч и округлите до десятых.

Хорда окружности равна 12 корней из 3 и стягивает дугу в 120 градусов. Найдите длину дуги и площадь соответствующего сектора.

что общего в строении вегетативной и генеративной почек? и в чём различия?

Поставьте глаголы в скобках в настоящее время (Present Simple). I (be) a pupil. I (go) to school. My sister (be) a pupil too. She (study) well. Tom and Bob (be) fine. You (be) in the park. They (have) got a house. My uncle (have) got a car. I (have) lunch at school. Tom (have) lunch at home. My brother (go) to school. His sisters (go) to school. We (buy) bread every day. Mother (buy) ice-cream on Sunday. Mr Brown (live) in London. The Greens (live) in New York. Jane (like) to play with her dolls. Tom and Bob (like) to play football. This girl (skate) in the park. My cat (run) in the garden. The kittens (jump) in the room. We (do) our homework. Tom (do) his homework. Men (like) to play football. This man (play) tennis well. Tom's friend (go) to school. Bob's friends (play) hockey. Ann's aunt (live) in London. Kate's uncles (live) in Moscow. We (have) soup for lunch. This woman (be)my aunt. These women (swim) well. That woman (sing) well. My sister and I (help) our mother. His sister (cook) dinner. Ann and Jane (read) a lot of books. Kate (write) a lot of letters. His Granny often (work in the garden. The child (like) to play with the toys. These children (like) to play with the dog. They (clean) their room on Sunday. Jane (wash) her hands before dinner. Kate (watch) TV in the evening. Granny (give) me milk in the evening. Mrs Smith's son (drink) juice after lunch. We (eat) porridge every morning. John's cat often (catch) mice. Some mice (live) under the house. My father (work) every day. Little children often (cry). My little often (cry). My little brother often (cry). The bird (fly) in the sky. This fish (swim) in the river. These fish (swim) in the river.