1.решите: 3 (5-х)=11+2х 2. найдите значение выражения: 3а+5в-4а-2в при а=5,3; в=1/3 3.представьте выражение в виде степени: (у3)4×у2 у7 решите что сможете, прошу☆

224

467

Посмотреть ответы 2

Ответы на вопрос:

danchik00148

Английский язык

4,7(38 оценок)

1) 2)3а+5в-4а-2в=3в-а при а=5,3; в=1/3; то 3×(1/3)-5,3= 1-5,3=-4,3

даша3645

Английский язык

4,6(32 оценок)

1. i can speak english. 2. i could ski when i was seven. 3. i will be able to go to the club when my mother comes. 4. the students have to work hard. 5. i’ve bought new skates and tomorrow i will be able to skate. 6. it is cold today. you should put on your coat. 7. we had to wait as the manager was out. 8. we were to meet on monday. 9. every young man must serve in the army. 10. you ought to be more attentive at the lessons