за три дня яхта капитана Врунгеля преодолела 222 км, причем за 2 день она преодолела 7восьмых расстояния пройденного за первый день , а за 3 день 90% того что за 1 .сколько километров проходила яхта за каждый день желательно с объяснениями)
1. Lena didn't want to get up,did she? Yes, Lena didn't want to get up. 2. Lena had a lot to do, didn't she ? Yes she did. Lena had a lot to do. 3. It was windy and cold outside, wasn't it? Yes it was. It was windy and cold outside. 4. Lena couldn't think about the party and the cake, could she? Yes she couldn't think about the party and the cake. 5. Lena and her mother decided to have lemon tea and sandwiches for breakfast, didn't they ? Yes they did. They decided to have lemon tea and sandwiches for breakfast. 6 Lena was happy to stay in bed, wasn't she? Yes, she was. She was happy to stay in bed.
Было фиолетовых < синих < серых. Стало серых < синих < фиолетовых. Все три волшебных были серыми, а стали фиолетовыми. Фиолетовых было x, синих x+1, серых = синих + 2 = x + 3 x + x + 1 + x + 3 = 100 3x = 96 Фиолетовых x = 96/3 = 32, синих 33, серых 35. 3 волшебных галстука превратились из серых в фиолетовые. Стало серых 32, синих 33, фиолетовых 35. При всех остальных вариантах получается нецелое количество галстуков, или каких-то, например, синих, столько же, сколько других. Поэтому это решение единственное.
2. Lena had a lot to do, didn't she ? Yes she did. Lena had a lot to do.
3. It was windy and cold outside, wasn't it? Yes it was. It was windy and cold outside.
4. Lena couldn't think about the party and the cake, could she? Yes she couldn't think about the party and the cake.
5. Lena and her mother decided to have lemon tea and sandwiches for breakfast, didn't they ? Yes they did. They decided to have lemon tea and sandwiches for breakfast.
6 Lena was happy to stay in bed, wasn't she? Yes, she was. She was happy to stay in bed.