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15 tháng 4 2022
Hello! I'm an English, I live in Vietnam. This is a beautiful country, but there are a lot of traffic problems in big cities, such as: Ho Chi Minh City, Da Nang City, Ha Noi Capital,... Firstly, there are too many people using the roads especially in the rush hour when people run out to work and school or get home from those places. Then, there are too many vehicles on the road that leads to traffic jams. Another problem is that many roads are narrow and bumpy. After that, there are traffic accidents every day so alot of people lose their lives or are injured. So in order to travel on the roads safely, I think we should obey the traffic rules and traffic signs as well. Moreover, carefullness is very necessary when you join the traffic.
15 tháng 4 2022
Hello! I'm an English, I live in Vietnam.
This is a beautiful country, but there are a lot of traffic problems in big cities, such as: Ho Chi Minh City, Da Nang City, Ha Noi Capital,...
Firstly, there are too many people using the roads especially in the rush hour when people run out to work and school or get home from those places.
Then, there are too many vehicles on the road that leads to traffic jams. Another problem is that many roads are narrow and bumpy.
After that, there are traffic accidents every day so alot of people lose their lives or are injured.
So in order to travel on the roads safely, I think we should obey the traffic rules and traffic signs as well.
Moreover, carefullness is very necessary when you join the traffic.
23 tháng 6 2018
I call the number of students didn't take part in Mathemas Competition in class A & B are a & b respectively
(with condition: a & b \(\in\)N*)
,From the theme, we have: \(\frac{1}{3}b+a=\frac{1}{5}a+b\)(Because rhe number of students in 2 class is the same)
\(\Leftrightarrow\frac{b}{3}-b+a-\frac{a}{5}=0\Leftrightarrow\left(-\frac{2b}{3}\right)+\frac{4a}{5}=0\)
\(\Leftrightarrow\frac{4a}{5}-\frac{2b}{3}=0\Leftrightarrow\frac{12a-10b}{15}=0\Leftrightarrow12a=10b\)
\(\Rightarrow\frac{a}{b}=\frac{10}{12}=\frac{5}{6}\)
So the ratio of the number of student didn't take part of Class A & B is \(\frac{5}{6}.\)
NS
1
10 tháng 1 2016
I bought a lot of different gifts for my friends .
tick cho mình nha nhok silver bullet !!!
5 tháng 2 2017
Mk giải bằng tiếng việt nha!
Trong 1 ngày thì con ngựa ăn được:
1\(\div\)4=\(\frac{1}{4}\)(kiện cỏ)
Trong 1 ngày thì con dê ăn được:
1\(\div\)6=\(\frac{1}{6}\)(kiện cỏ)
Trong 1 ngày thì con cừu ăn được:
1\(\div\)12=\(\frac{1}{12}\)(kiện cỏ)
Vậy trong 1 ngày thì cả 3 con ăn được:
\(\frac{1}{4}\)+\(\frac{1}{6}\)+\(\frac{1}{12}\)=\(\frac{1}{2}\)(kiện cỏ)
Để ăn hết kiện cỏ thì cả 3 con cần:
1\(\div\)\(\frac{1}{2}\)=2(ngày)
Học tốt!
18 tháng 10 2015
1. They have water and take great care of tree during the first month.
2.They carry the recycled bags and put the rubbish in.
3. The community organises this activity once a month.
4. They walk along the beach and collect all the rubbish.
5. Activity há often been done in sring.
6. They dig a hole and put young trees in.
( Đáp án chuẩn ko cần chỉnh đó )
Whey usually take a lot of beautiful photos