Question

6 класс Выраз Помогите плис 1) 5•х•9•8•а•m2s 2) 2а•3t•4n 3) 10c-2c 4) (7-a)•9 5) 18t-2t-5t 6) 7•(a-3) Дам 40 баллов

Answer 1

Ответ:

1

Пошаговое объяснение:

Пожалуста. (◉‿◉) (｡◕‿◕｡)

Answer 2

6 класс: Выражения

1) 5•х•9•8•а•m2s 2) 2а•3t•4n 3) 10c-2c 4) (7-a)•9 5) 18t-2t-5t+6 6) 7•(a-3)

1) 5•х•9•8•а•m2s To simplify this expression, we can multiply the numbers and variables together. Let's break it down step by step:

- Multiply 5 and х: 5•х = 5х - Multiply 5х and 9: 5х•9 = 45х - Multiply 45х and 8: 45х•8 = 360х - Multiply 360х and а: 360х•а = 360ах - Multiply 360ах and m2s: 360ах•m2s = 360ахm2s

So, the simplified expression is 360ахm2s.

2) 2а•3t•4n To simplify this expression, we can follow the same steps as before:

- Multiply 2а and 3t: 2а•3t = 6аt - Multiply 6аt and 4n: 6аt•4n = 24аtn

So, the simplified expression is 24аtn.

3) 10c-2c To simplify this expression, we can combine like terms:

- Subtract 2c from 10c: 10c-2c = 8c

So, the simplified expression is 8c.

4) (7-a)•9 To simplify this expression, we can follow the same steps as before:

- Subtract a from 7: 7-a = 7-a - Multiply 7-a and 9: (7-a)•9 = 63-9a

So, the simplified expression is 63-9a.

5) 18t-2t-5t+6 To simplify this expression, we can combine like terms:

- Subtract 2t from 18t: 18t-2t = 16t - Subtract 5t from 16t: 16t-5t = 11t - Add 6 to 11t: 11t+6 = 11t+6

So, the simplified expression is 11t+6.

6) 7•(a-3) To simplify this expression, we can distribute the 7 to both terms inside the parentheses:

- Multiply 7 and a: 7•a = 7a - Multiply 7 and -3: 7•-3 = -21

So, the simplified expression is 7a-21.

I hope this helps! Let me know if you have any further questions.