\(a+a.\frac{3}{2}+a:\frac{2}{7}=252\)

=>\(a+a.\frac{3}{2}+a.\frac{7}{2}=252\)

=>\(a.\left(1+\frac{3}{2}+\frac{7}{2}\right)=252\)

=>\(a.\left(1+5\right)=252\)

=>\(a.6=252\)

=>\(a=42\)

Vậy \(a=42\)

A+Ax3/2+A:2/7=252

A+Ax3/2+Ax7/2=252

Ax(1+3/2+7/2)=252

Ax6=252

A=42

HT

thank nha

a: UM=AU=2,5/2=1,25cm

VA=VE=AE/2=1,25cm

b: UV=1,25+1,25=2,5cm

41. They put on a new roof last year.

- A new roof was put on last year

42. Someone empties the dustbins every Thursday.

- The dustbins are epmtied every Thursday.

43. She delivers milk at about six o’clock .

- Milk is delivered  at about six o’clock .

44. They are going to finish a new school in the village next year.

- A new school is beeing to finished school in the village next year.

45. The police are questioning the man.

- The man is beeing  questioned by the police. 

46. They will probably send him back to Britain.

- he will be probably sent back to Britain.

47. Since then people have seen him  in 10 different countries

- He has been seen in 10 different countries since then.

41. They put on a new roof last year.

- A new roof was put on last year

42. Someone empties the dustbins every Thursday.

- The dustbins are emptied every Thursday.

43. She delivers milk at about six o’clock .

- Milk is delivered  at about six o’clock .

44. They are going to finish a new school in the village next year.

- A new school is beeing to finished school in the village next year.

45. The police are questioning the man.

- The man is beeing  questioned by the police. 

46. They will probably send him back to Britain.

- He will be probably sent back to Britain.

47. Since then people have seen him  in 10 different countries

- He has been seen in 10 different countries since then.

Để A nguyên thì -11 chia hết cho n

=>\(n\in\left\{1;-1;11;-11\right\}\)

cái dấu <=> có nghĩa là khi và chỉ khi nhé 

chúc bạn học tốt!!!

dấu <=>

mk nghĩ là dấu suy ra

chúc bn hok tốt !

khong hieu cau hoi cho lam noi ro duoc khong. cam on

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B. Ví dụ về nguồn sáng: mặt trời, đèn pin đang bật, bếp đang cháy,...

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Đề bài yêu cầu gì?

➙My baby drinks more milk than her baby.

➙My baby doesn't drinks less milk than her baby.

mí bạn xem mk lm đúng ko nha.

REWRITE THE FOLLOWING SENTENCES:

1. Her baby drinks less milk than my baby.

→ My baby drinks more milk than her baby.

➝ My baby doesn't drink as little milk as her baby does.