giúp tớ cái , tớ sắp có việc gấp r ><
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GL
1 tháng 8 2023
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
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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
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III
1. taught/ to ride/ was
2. does your father go/ drives
3. are going
4. used/ lived
5. spent/ repairing
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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
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V
1. A
2. B
3. A
4. D
5. C
31 tháng 8 2023
gọi số cần tìm là abcde ,ta có
abcde2= 2abcde x 3 ,phân tích cấu tạo số ra ta dc:
100000a+10000b+1000c+100d+10e+2=600000+30000a+3000b+300c+30d+3e , rút gọn ta được :
70000a+ 7000b+700c+70d+7e+2=600000 nên 70000a+ 7000b+700c+70d+7e=599998
suy ra 7(10000a+1000b+100c+10d+e)=599998 nên 7abcde=599998
suy ra abcde=85714
D
23 tháng 4 2017
Bạn làm theo cách này nhé:
\(\frac{7}{5}\div\frac{4}{5}=\frac{7}{4}\)(5 ở trên tử và 5 ở dưới mẫu triệt tiêu còn 1)
Ta có: \(\frac{7}{4}>1>\frac{2005}{2006}\Rightarrow\frac{7}{4}\div\frac{4}{5}>\frac{2005}{2006}\)
4:
a: 13/x-5 là số nguyên
=>x-5 thuộc {1;-1;13;-13}
=>x thuộc {6;4;18;-8}
b: (x+3)/(x-2) là số nguyên
=>x+3 chia hết cho x-2
=>x-2+5 chia hết cho x-2
=>x-2 thuộc {1;-1;5;-5}
=>x thuộc {3;1;7;-3}
c: 2x/x-2 là số nguyên
=>2x chia hết cho x-2
=>2x-4+4 chia hết cho x-2
=>x-2 thuộc {1;-1;2;-2;4;-4}
=>x thuộc {3;1;4;0;6;-2}