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HT
2
15 tháng 12 2021
a. Chu vi là \(\left(12+5\right).2=34\left(m\right)\)
Diện tích là \(12.5=60\left(m^2\right)=600000\left(cm^2\right)\)
b. Cần lát \(600000:\left(40.40\right)=375\) viên gạch
BH
12
17 tháng 3 2022
TL:
Sai nhé bạn
Bạn k cho mik cái đi nhé
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HT
HT
12
HM
5
HT
5
IO
13 tháng 12 2021
3x . 2 + 15 = 33
3x . 2 = 33 - 15 = 18
3x = 18 : 2 = 9 = 32
=> x = 2
T
13
1. give / things / him / many / the foreman / this morning / to do / How / did ?
How many things did the foreman give him this morning?
2. having / of / the moment / Tran Phu School / check-up / The students / at / medical / are / a /
The students of Tran Phu School are having a check-up medical at teh moment.
3. yesterday / go / a / had / Lan / school / headache / didn't / because / to / she /.
Lan didn't go to yesterday because she had a headache.
4. catch / milions / cold / Every / people / the / of / year / common.
Every year millions of people catch the common cold.
5. last / days / disappears / cold / for / common / few / then / The / a / and /.
The common cold last for a few days and then disappears.
6. prevent / and / well / a cold / You / doing / eating / can / exercise / help / by /.
You can help prevent a cold by eating well and doing exercise.
7. terrible / the dentist / had / visited / a / toothache / she / because / Trang / yesterday/.
Trang visited the dentise yesterday because she had a terrible toothache.
8. breathing / the facemask / from / Wearing / helps me / in / stop / dust /.
Wearing the facemask helps me stop from breathing in dust.
9. absence / ago / my / a / days / father / note / My / two / sick / wrote / for /.
My father wrote a sick note for my absence two days ago.
10. unpleasant / knows / very / Catching / a cure / but / the common cold / no one / is /.
Catching the common cold is very unpleasant buy no one knows a cure.
Chúc bạn học tốt ^^