<span>600 * 40 + 20 * 8=24160
</span><span>600 - 40 + 20 * 8=720
</span>600+(40:20)+8=610
Пусть каждый кролик съел х морковок, а поросенок у морковок, тогда 3х + 4у = 26 и также х = 3у потому что кролик съел в 3 раза больше поросенка, подставляем в первое уравнение получаем
3•3у + 4у = 26
9у + 4у = 26
13у = 26
У=2
Х= 6
Кролик - 6 морковок
Поросенок - 2 морковки
500:30=16.66666666666666
А дальше методом подбора
Ближайшее число дерущиеся на 30 480
380 : 30 =16
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.
Мы не знаем, какова его скорость, но знаем, что скорость Моськи в 10 раз больше. Моська пробежала расстояние в 10 раз большее, чем слон, т. е. 10. Всё!