huheo giúp tớ đi tớ cho:3

giúp với:<

24+3(5-x)=27

3(5-x) = 27-24

3(5-x) = 3

5-x= 3:3

5 - x = 1

x= 4

~~~Học tốt ~~~

they does you s english.

Do they English?

do they english

1B

2C

3A

4D

5C

6A

Chào em, em tham khảo nhé:

1. B

2. C

3. A

4. D

5. C

6. A

Chúc em học tốt.

1B

2C

3A

4D

5C

6A

a) \(k=-5\)

b) 

Tìm x xong rồi tìm y

3 thì làm kiểu gì cũng được

Bài 3:

Hình 1:

Xét ΔABC có \(\widehat{A}+\widehat{B}+\widehat{C}=180^0\)

=>\(x+60^0+40^0=180^0\)

=>\(x=180^0-100^0=80^0\)

Hình 2:

Xét ΔABD có \(\widehat{ADC}\) là góc ngoài tại đỉnh D

nên \(\widehat{ADC}=\widehat{ABD}+\widehat{BAD}=110^0\)

=>\(y=110^0\)

ΔDAC cân tại D

=>\(\widehat{DAC}=\widehat{DCA}=\dfrac{180^0-\widehat{ADC}}{2}\)

=>\(x=\dfrac{180^0-110^0}{2}=35^0\)

Hình 3:

Ta có: \(\widehat{CAB}+60^0=180^0\)

=>\(\widehat{CAB}=180^0-60^0=120^0\)

Xét ΔCAB có \(\widehat{CAB}+\widehat{ABC}+\widehat{ACB}=180^0\)

=>\(x+2x+120^0=180^0\)

=>\(3x=60^0\)

=>\(x=20^0\)

Hình 4:

Ta có: \(\widehat{ADC}+\widehat{ADB}=180^0\)

=>\(\widehat{ADB}=180^0-80^0=100^0\)

Xét ΔADB có

\(\widehat{ADB}+\widehat{ABD}+\widehat{BAD}=180^0\)

=>\(x+60^0+100^0=180^0\)

=>\(x=20^0\)

ta có: \(\widehat{ACD}+135^0=180^0\)

=>\(\widehat{ACD}=180^0-135^0=45^0\)

Xét ΔACD có \(\widehat{ACD}+\widehat{ADC}+\widehat{DAC}=180^0\)

=>\(y+80^0+45^0=180^0\)

=>\(y=55^0\)

1 had it fixed

2 have it replaced

3 had a new monitor deliver

4 had it tested

5 have the software installed

6 had all those problems solved

Bài 5

1 be - the past participle

2 the past participle

3 of

4 recycled

5 fall

6 environment

1. shouldn't

2. should

3. should

4. should

5. should

6. Should

7. should

8. shouldn't

9. should

10. should

11. shouldn't

12. Should

13. should

14. shouldn't

15. shouldn't

-----------

II

1. was -> were

2. Was -> Were

3. was -> did

4. went -> go

5. weren't -> didn't

6. have -> had

7. broke -> break

8. go -> went

9. am -> was

10. turn -> turned

--------------

III

1. taught/ to ride/ was

2. does your father go/ drives

3. are going

4. used/ lived 

5. spent/ repairing 

-------------

IV

1. Lang Lieu couldn't buy any special food because he was very pool

2. During Tet, Vietnamese people buy all kinds of sweets, so they make Chung cakes as well

3. The Hung King Temple Festival was a local festival. However, it has become a public holiday in Viet Nam

4. At the Mid-Autumn festival, kids can sing, dance and enjoy moon cakes; therefore, every child like it very much.

5. Because the water is highly polluted, we can't swim in this part of the river

6. Mr. Minh is admired since he dedicates all his life to protecting the environment

-------------

V

1. A

2. B

3. A

4. D

5. C 

e cần trả lời bài nào?

Tìm ba số tự nhiên liên tiếp biết rằng cộng ba tích mỗi tích là tích của hai trong ba số đó thì đc 26

Tớ cũng hỏi thầy r nhưng th bảo là k sai đề đou =((( chính xác là 5 tích ạ =(((

?

chịu 

Bạn cho cái đề v thì chịu :')