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Duy Khanh 13.Hoàng
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Nguyễn Lê Phước Thịnh
10 tháng 2 2022 lúc 21:15

Bài 3: 

Gọi số học sinh là x

Theo đề, ta có: \(x-5\in BC\left(8;12;15\right)\)

mà 300<=x<=400

nên x=365

Hiriea
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Nguyễn Lê Phước Thịnh
16 tháng 10 2023 lúc 19:52

\(14000000\)

Trang Nguyen Thi
16 tháng 10 2023 lúc 22:08

là14000000haha

Vũ Mai Loan
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Trần Đức Huy
6 tháng 2 2022 lúc 11:02

a)\(-1,6:\left(1+\dfrac{2}{3}\right)=-1,6:\dfrac{5}{3}=-\dfrac{8}{5}.\dfrac{3}{5}=\dfrac{-24}{25}\)

b)\(\left(\dfrac{-2}{3}\right)+\dfrac{3}{4}-\left(-\dfrac{1}{6}\right)+\left(\dfrac{-2}{5}\right)=-\dfrac{2}{3}+\dfrac{3}{4}+\dfrac{1}{6}-\dfrac{2}{5}=\dfrac{-40+45+10-24}{60}=\dfrac{-9}{60}=\dfrac{-3}{20}\)

c)\(\left(\dfrac{-3}{7}:\dfrac{2}{11}+\dfrac{-4}{7}:\dfrac{2}{11}\right).\dfrac{7}{33}=\left(\dfrac{-3}{7}.\dfrac{11}{2}+\dfrac{-4}{7}.\dfrac{11}{2}\right).\dfrac{7}{33}=\left[\dfrac{11}{2}\left(\dfrac{-3}{7}+\dfrac{-4}{7}\right)\right].\dfrac{7}{33}=\dfrac{-11}{2}.\dfrac{7}{33}=\dfrac{-7}{6}\)

d)\(\dfrac{-5}{8}+\dfrac{4}{9}:\left(\dfrac{-2}{3}\right)-\dfrac{7}{20}.\left(\dfrac{-5}{14}\right)=\dfrac{-5}{8}-\dfrac{4}{9}.\dfrac{3}{2}+\dfrac{1}{8}=\dfrac{-5}{8}+\dfrac{1}{8}-\dfrac{2}{3}=-\dfrac{7}{6}\)

123211231312
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Phía sau một cô gái
10 tháng 10 2023 lúc 20:01

       Christmas is a magical and enchanting time of year. It is a joyous and festive occasion filled with love, happiness, and excitement. The air is filled with a warm and cozy atmosphere, as families come together to celebrate. The beautifully decorated Christmas tree sparkles with twinkling lights and shimmering ornaments. Delicious and indulgent feasts are prepared, filling the air with mouth-watering aromas. Generosity and kindness abound as people exchange thoughtful and heartfelt gifts. The joyful laughter of children fills the air, accompanied by the melodic sounds of Christmas carols. The winter scenery is breathtaking, with glistening snowflakes and frosty landscapes. The spirit of Christmas is truly magical, bringing warmth, joy, and togetherness to all.

Nguyễn Thanh Thủy
21 tháng 6 lúc 21:04

    Christmas is a magical and enchanting time of year. It is a joyous and festive occasion filled with love, happiness, and excitement. The air is filled with a warm and cozy atmosphere, as families come together to celebrate. The beautifully decorated Christmas tree sparkles with twinkling lights and shimmering ornaments. Delicious and indulgent feasts are prepared, filling the air with mouth-watering aromas. Generosity and kindness abound as people exchange thoughtful and heartfelt gifts. The joyful laughter of children fills the air, accompanied by the melodic sounds of Christmas carols. The winter scenery is breathtaking, with glistening snowflakes and frosty landscapes. The spirit of Christmas is truly magical, bringing warmth, joy, and togetherness to all.

NoName
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Dang Khoa ~xh
17 tháng 1 2022 lúc 14:58

A

1. A

2. B

3. C

4. D

5. B

6. A

7. C

8. A

9. B

10. C

zero
17 tháng 1 2022 lúc 15:02

1. A      2. B       3. C       4. D      5. B       6. A          7. C          8. A        9. B       10. C

Nguyễn Thành Long
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Nguyễn Thành Long
25 tháng 9 2023 lúc 21:09

ai giúp mình đi xong mình tick cho =(

 

36 Hammy
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lyn (acc 2)
27 tháng 5 2022 lúc 19:38

?? bài dou

Thai Nguyen xuan
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