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9 tháng 11 2021

=42/18

Hoktot

9 tháng 11 2021

TL:

\(\frac{42}{18}\)

-HT-

!!!!

20 tháng 1 2017

a)\(\frac{-5}{13}+\left(\frac{3}{5}+\frac{3}{13}-\frac{4}{10}\right)=\frac{-5}{13}-\frac{3}{5}-\frac{3}{13}+\frac{4}{10}=\left(\frac{-5}{13}-\frac{3}{13}\right)+\frac{4}{10}-\frac{3}{5}=\frac{-5-3}{13}+\left(\frac{4}{10}-\frac{6}{10}\right)=\frac{-8}{13}+\frac{-2}{10}=\frac{-80}{130}+\frac{-26}{130}=\frac{-106}{130}=\frac{-53}{65}\)

20 tháng 1 2017

tại sao bạn ra \(\frac{-5}{13}\)

26 tháng 12 2017

98/25 = 3,92

36/16 = 2,25

18/4 = 4,5

26/5 = 5,2

26 tháng 12 2017

98/25 = 3,92

36/16 = 2,25

18/4 = 4,5

26/5 = 5,2

k mình nhoa ! ~~~

15 tháng 11 2021

72 nha bạn

15 tháng 11 2021

\(1+3+4+7+11+18+29\)

\(=\left(29+1\right)+\left(3+7\right)+\left(11+4\right)+18\)

\(=30+10+15+18\)

\(=40+33\)

\(=73\)

Câu 16: If Hoa had a raincoat, she…………a cold.A. wouldn't catch B. would have caughtC. wouldn't have caught D. didn't catchCâu 17: . …… you work harder, you will succeed.A. When B. Unless C. If D. BecauseCâu 18: If I had missed the bus that afternoon, I …… a taxi instead.A. would have got B. got C. would get D. will getCâu 19: What would you do if you……….by a snake.A. has been bitten B. are bitten C. were bitten D. had been bittenCâu 20: If you……..your homework, I………..you watch TV.A. did/ won't...
Đọc tiếp

Câu 16: If Hoa had a raincoat, she…………a cold.

A. wouldn't catch B. would have caught

C. wouldn't have caught D. didn't catch

Câu 17: . …… you work harder, you will succeed.

A. When B. Unless C. If D. Because

Câu 18: If I had missed the bus that afternoon, I …… a taxi instead.

A. would have got B. got C. would get D. will get

Câu 19: What would you do if you……….by a snake.

A. has been bitten B. are bitten C. were bitten D. had been bitten

Câu 20: If you……..your homework, I………..you watch TV.

A. did/ won't let B. won't do/ don't let

C. won't do/ let D. don't do/ won't let

Câu 21: I didn't go into business with Sam. If I......... into business with him, I....…..  a success.

A. had gone/would become B. had gone/would have become

C. go/will become D. went/would go

Câu 22: You really …… stop smoking, you know. It’s bad for you.

A. would B. can C. ought D. should

Câu 23: If you sold your house, you didn't get much money for it

                                  A                        B             C                   D

1
16 tháng 3 2022

16. C
17. C
18. A
19. C
20. D
21. B
22. D
23. B   -   didn't -> wouldn't

17 tháng 3 2022

em cảm mơn nhiều ạ 

23 tháng 5 2018

Đáp án: 15 – 17 – 14 – 18 – 16 - 13

19 tháng 12 2019

GT \(\Leftrightarrow\)\(\frac{xy-9}{3y}=\frac{1}{18}\)

\(\Leftrightarrow\left(xy-9\right).18=3y\)

\(\Leftrightarrow18xy-3y=162\)

\(\Leftrightarrow6xy-y=54\)

\(\Leftrightarrow y\left(6x-1\right)=54\)

Lập bảng tìm giá trị của x,y