Hiệu vận tốc là:

       11-5=6 (km/giờ)

Thời gian để đi gặp nhau là:

         8:6=1 giờ 20 phút

Đổi: 1 giờ 20 phút = 80 phút

                     Đáp số: 80 phút

k mik nha các bạn

giả sử 36 con là chó thì có số chân là:

36*4=144(cái)

số chân dôi ra là:

144-100=44(cái)

vì mỗi lần thay 1 con gà bằng 1 con chó nên số chân dôi ra là:

4-2=2(cái)

có số gà là:

44:2=22(con)

có số chó là:

36-22=14(con)

đáp số:....

For my favorite artist I chose Leonardo DaVinci.He was born in 1452 and die in 1512 He is the best artist in my eyes but other people think that there is better now, but I saw better. My favorite painting is Mona Lisa, why because it looks like a work of art no dout about it. One of my other favorite is The Second Giaconda. I just want to see all his works of arts but that would never happen. But if it did I would spend so much time just looking at them trying to see what he is trying to say and mean. There is nobody better than Leonardo DaVinci and that is a main fact in deed. But if he were alive right now he would be very rich if he sells his paintings I would love to be like him any time of the day. That is why I chose Leonardo DaVinci and those pieces of art that mostly takes forever I know I wouldn't last