180=2².5.9

84=2².3.7

=>BCNN(180,84)=2^2.3.5.7.9=3780

=>BC(180,84)=B(3780)={0;3780;7560;......}

12%x346:100=0.4152

= 0,4152

đây là bài liên quan đến tổng và hiệu đó

đã có nửa chu vi thì ta đi tìm chiều rộng

Chiều dài bể bơi đó là:

( 980 + 76 ) : 2 = 528 ( m )

            Đáp số  : 528 m

Trả lời kiểu gì vậy

anh có 15 tấm ảnh
em ít hơn anh 1/5 => số ảnh của em là 15:5 = 3 ảnh 
tổng số ảnh của cả 2 là 15+3=18 cái

k cho mình nhé

co cai nii

có 5 cách chọn hàng chục nghìn
5 cách chọn hàng nghìn
5 cách chọn hàng trăm
5 cách chọn hàng chục

5 cách chọn hàng đơn vị

=>> ta có : 5*5*5*5*5=3125 số có 5 chữ số lập từ các số 1;2;3;4;5

k đúng cho mình nhé

I am a high school student and the others, my daily activities are usually the same. Today, I am going to describe my usual day. As my main duty now is studying, my main activities on weekdays are going to schools, to extra classes and doing my homework. In the morning, I get up very early, at about 5 a.m. Then, I take a shower, have breakfast and change my clothes. At about 6 o’clock, I review my lessons and prepare for today’s work. At about half past six, I go to school by bicycle and stay there until 4 o’ clock in the afternoon. I have lunch at school and take a short nap before attending afternoon classes. In the evening, I often go to extra classes and self-study until 7 o’clock. Then, I have dinner with my parents. This is my favorite moment because I can talk to them about my day. At about 8 o’clock, I watch television and listen to music for about one hour. After that, I make some revisions and go to bed before 10p.m. Here is my daily routine on weekdays. I think that my routine is very well-organized and convenient. On the weekend, I have more free time to relax and go out, so I do not feel stressed.

đây là tiếng anh chứ ko phải toán nha bé