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10 tháng 4 2019

80:1,5=160/3 

805 nha

bạn nghỉ ra một số tự nhiên và đừng nói

5 tháng 7 2016

mik biết làm e hk hak

e, = 3,5-(-1):(-0,5)

    = 3,5 - 2

    = 1.5

Part 3: Give the correct form of the verb in brackets. (1,5 m)  HUHU GIẢI THÍCH GIÚP T VỚI Ạ, T CẢM ƠN RẤT NHIỀU, NHANH GIÚP T NHÉ TẠI T CẦN GẤP RẤT GẤP ẠFamous places in Ha Noi (visit) ………………every year.Lan (move) ………………………….to Ho Chi Minh city with her family last summer.Those students (walk) ………………..up the mountain to visit the shrine of a Vietnamese hero at present.If we use much pesticide on vegetables, the vegetables (become)……………….poisonous and inedible.How about...
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Part 3: Give the correct form of the verb in brackets. (1,5 m)  HUHU GIẢI THÍCH GIÚP T VỚI Ạ, T CẢM ƠN RẤT NHIỀU, NHANH GIÚP T NHÉ TẠI T CẦN GẤP RẤT GẤP Ạ

Famous places in Ha Noi (visit) ………………every year.

Lan (move) ………………………….to Ho Chi Minh city with her family last summer.

Those students (walk) ………………..up the mountain to visit the shrine of a Vietnamese hero at present.

If we use much pesticide on vegetables, the vegetables (become)……………….poisonous and inedible.

How about (make)…………………….posters on energy and hanging them around our school?

Would you like (have)………………..a drink?

 

Part 4: Give the correct forms of the words in the brackets to finish the following sentences. (1,0 m)

What have fashion designers done to (modern)…………………the ao dai?

A computer can gather a lot of (inform)……………………for different purposes.

In order to keep our environment (pollute) ……………….., we shouldn’t drop litter in public places.

Our teacher is pleased that we solved the problems (effect) ……………………..

 

Part 5: Choose the words or phrases in brackets that best completes each sentence. (1,0 m)

Jeans have never been out of fashion, and today young generation is still fond (in/ on/ at/ of) ………….wearing them.

(A/ An/ The/ Every)…………….Parkers are nice, so van feels like a member of their family.

You (did/ didn’t do/ had/ hadn’t)……………your homework last night, did you?

If we (go on/ turn off/ look after/ take away)……………throwing garbage, the environment will be contamined.

 

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20 tháng 5 2022

Part 3: Give the correct form of the verb in brackets. (1,5 m)  

Famous places in Ha Noi (visit) ………are visited………every year.

Lan (move) ……………moved…………….to Ho Chi Minh city with her family last summer.

Those students (walk) ………are walking………..up the mountain to visit the shrine of a Vietnamese hero at present.

If we use much pesticide on vegetables, the vegetables (become)………will become……….poisonous and inedible.

How about (make)…………making………….posters on energy and hanging them around our school?

Would you like (have)………to have………..a drink?

 

Part 4: Give the correct forms of the words in the brackets to finish the following sentences. (1,0 m)

What have fashion designers done to (modern)…………mordernize………the ao dai?

A computer can gather a lot of (inform)…………information…………for different purposes.

In order to keep our environment (pollute) ………unpolluted……….., we shouldn’t drop litter in public places.

Our teacher is pleased that we solved the problems (effect) …………effectively…………..

 

Part 5: Choose the words or phrases in brackets that best completes each sentence. (1,0 m)

Jeans have never been out of fashion, and today young generation is still fond (in/ on/ at/ of) ……of…….wearing them.

(A/ An/ The/ Every)………The…….Parkers are nice, so van feels like a member of their family.

You (did/ didn’t do/ had/ hadn’t)……didn't do………your homework last night, did you?

If we (go on/ turn off/ look after/ take away)……go on………throwing garbage, the environment will be contamined.

8 tháng 7 2016

http://coccoc.com/search#query=d)-5%2F7.2%2F11%2B5%2F7.9%2F11%2B12%2F7e)3%2C5-(-2%2C5%2B1%2C5)%3A(-0%2C5)

8 tháng 7 2016

bài này dễ lắm ,bn à

d) = 5/7(9/11 -2/11) +12/7 = 5/7 . 7/11 + 12/7

= 5/11 + 12/7 = (35+132)/77 = 167/77

e) = 3,5 - (-1):(-0,5) = 1,5

8 tháng 12 2019

Ta có : số bé =80% số lớn hay số bé =4/5 số lớn

tổng số phần bằng nhau là :

4+ 5 = 9 ( phần )

số bé là :  109,8 :9 x4 = 48,8

số lớn là : 109,8 -48,8 =61

Đáp số :số bé :48,8 và số lớn :61

chúc bạn học tốt **** nhớ tích đúng cho mình nha

80%=4/5

Số lớn là :109,8:(4+5)x5=61

Số bé là :109,8-61=48,8

                   Đáp số :48,8

Mik chưa chắc lắm

11 tháng 2 2018

\(\frac{12}{16}=-\frac{x}{4}=\frac{21}{y}=\frac{z}{-80}\)

Ta có : \(\frac{12}{16}=-\frac{x}{4}\Rightarrow16.-x=12.4\Rightarrow16.-x=48\)

\(\Rightarrow-x=3\Rightarrow x=-3\)

\(\frac{12}{16}=\frac{21}{y}\Rightarrow12.y=16.21\Rightarrow12.y=336\)

\(\Rightarrow y=28\)

\(\frac{12}{16}=\frac{z}{-80}\Rightarrow16.z=12.-80\Rightarrow16.z=-960\)

\(\Rightarrow z=60\)

Vậy x = - 3 ; y = 28 ; z = 60

11 tháng 2 2018

Ta có:

\(\frac{12}{16}=\frac{-x}{4}=\frac{21}{y}=\frac{z}{-80}\)

\(\Leftrightarrow\frac{12}{16}=\frac{-x}{4}=\frac{21}{y}=\frac{-z}{80}\) (Chuyển mẫu âm thành dương)

\(\frac{-x}{4}=\frac{12}{16}=\frac{12:\left(-4\right)}{16:\left(-6\right)}=\frac{-3}{-4}=\frac{3}{4}\Rightarrow x=-3\) (Ta chuyển mẫu âm thành dương)

\(\frac{21}{y}=\frac{3}{4}=\frac{3.7}{4.7}=\frac{21}{28}\Rightarrow y=28\)

\(\frac{-z}{80}=\frac{21}{28}\) ( Vì 80 : 28 không hết) \(\Rightarrow z=\varnothing\)

 \(\Rightarrow\hept{\begin{cases}-3\\28\\\varnothing\end{cases}}\)

31 tháng 8 2020

Ai xong trước và đúng thì mik nhé😇😇😇😇😇🥺🥺😭😫😫

31 tháng 8 2020

A B C D E H

=461-148-461+80=-68

6 tháng 12 2021

\(\left(461-148\right)-\left(461-80\right)=313-381=-68\)

11 tháng 8 2016

\(A=\left|3,7-x\right|+2,5\)

\(\Rightarrow GTLN\)là 2,5

Khi 3,7 - x = 0

             x = -3,7