It takes Tom 4 hours to built a fence. If he hires Jack to help him, together they can do the job in just 3 hours. If jack built the same fence alone, how long would it take him?
Choose the correct word marked A,B, or C to fill each blank in the following passage.(Why)
There are many reasons (1) ____ it is important to have a hobby. First of all, a hobby can be a remedy for your (2) ____. Because it is the activity you choose for yourself, it will always give you pleasure and (3) ____ you relax. Even if you just spend a little time enjoying your hobby, you can see the difference (4) ____ your spirit. Second, some hobbies can also (5) ____ you financially. Many old people enjoy gardening. They grow a lot of trees and vegertable, so they can sell them for some money. In (6) ____, a hobby can help you connect with other people. If you like colecting stamps, you can (7) ____ a stamp club to share your albums with other collectors. If your hobby is caving eggshells, you can give your products to your friends (8) ____ gifts.
1. A.for B. why C.because
2. A.happiness B.pain C.tiredness
3. A.help B. have C. do
4. A. for B. in C. on
5. A.harm B.give C.benefit
6. A. addition B. general C.conclusion
7. A.take part B.go C. join
8. A. like B.as C.for
Hai lop 9A va 9B cung tu sua vuon thuc nghiem cua nha truong trong bon ngay thi xong.Neu moi lop tu sua mot minh muon hoan thanh cong viec ay thi lop 9A can it thoi gian hon lop 9B la 6 ngay.Hoi moi lop lam mot minh can thoi gian labao hieu ngay de hoan thanh cong viec?
Who?
who are you
Hai can đựng dầu,can thứ nhất 28 lít,can hai là 22 lít. Nếu rót từ can một đầy sang can hai thì lượng dầu ở can một còn 1/2 thể tích. Nếu rót sang can hai đầy can một thì lượng dầu trong can hai chỉ còn 1/3 thể tích. Tính thể tích của mỗi can
WHO IS YOUR FAVOURITE ACTOR
tim z,y,z thoa
can x cong can tat ca y tru 1 cong can tat ca z tru 2 bang 1 phan 2 ( x cong y cong z)
tim GTN cua B bang 1 phan x tru can x cong 1
tim x thuoc z de can x cong 1 phan can 3 tru 3 la so nguyen
tinh tong T bang 1 phan can 1 cong can 2 cong 1 phan can 2 cong can 3 cong ... cong den 1 phan can 99 cong can 100
BAI 1 TINH GIA TRI CUA BTHUC
A=3PHAN 1+CAN 3 -2PHAN 1-CAN 3
B=CAN 10-CAN 5 PHAN CAN 2-1 -3CAN 5 +5PHAN CAN 5+3 +2 PHAN CAN 2
BAI 2 GIAI PT
a)CAN 49-28X+4X MU 2 -5=0
b)1PHAN 2 CAN X-2 -4 CAN 4X -8 PHAN 9 +CAN 9X+18 -5=0
MOI NGUOI GIUP MINH VS MINH CAN LUON BAY GIO
CAM ON