Diện tích khu đất tăng thêm là:

      45x15=675(m²)

Diện tích ban đầu của khu đất là:

     675x5=3375(m²)

                    Đáp số:3375m².

Gọi a là số tổ cần chia và a thuộc số tự nhiên khác 0 

24 chia hết cho a} a thuộc Ư(24) và a nhiều nhất 

108 chia hết cho a} a thuộc Ư(108) và a nhiều nhất 

Vậy a là ƯCLN (24,108) 

Ư(108)={1,108,2,54,3,36,4,27,6,18,9,12} 

Ư(24)={1,24,2,12,3,8,4,6} 

ƯCLN(24,108)=12(tổ) 

Vậy có thể chia được nhiều nhất 12 tổ 

Khi đó mỗi tổ có: 

Số bác sĩ là: 24:12= 2(bác sĩ) 

Số y tá là: 108:12= 9(y tá) 

Giáng Long Tôn Giả: sao mày cứ copy bài tao thế?

FIND THE SUITABLE ANSWERS.

1. I have to say that I'm a big fan of football, every day I come to the stadium to practice playing it. I really get a _ _ _ _ out of football.

2. My last holiday was very fantastic. I had a _ _ _ _ _ of time during the holiday.

3. Last week was my boy's birthday party. Having received a lot of toys made him _ _ _ _ from ear to ear.

4. I'm a happy _ _ _ _ _r because the girl I love most today becomes my wife.

5. I cannot participate in the football match today because I'm out of c_ _ _ _ _ _ _ _.

6. Plastic gloves, bamboo chopsticks.... are the s_ _ _ _ _-_ _e products.

7. It is very important to _ _ _ _h students about age education.

a) \(I\left\{{}\begin{matrix}p_1=4atm\\V_1=2l\\T_1=300K\end{matrix}\right.\rightarrow\left\{{}\begin{matrix}p_2=2atm\\V_2=?\\T_2=300K\end{matrix}\right.\)

\(\Rightarrow V_2=\frac{p_1V_1}{p_2}=\frac{4\cdot2}{2}=4\left(l\right)\)

b) \(II\left\{{}\begin{matrix}p_2=2atm\\V_2=2l\\T_2=300K\end{matrix}\right.\rightarrow III\left\{{}\begin{matrix}p_3=?\\V_3=2l\\T_3=600K\end{matrix}\right.\)

\(\Rightarrow p_3=\frac{p_2\cdot T_3}{T_2}=\frac{2\cdot600}{300}=4\left(atm\right)\)

\(\left(\frac{4}{9}\right)^2nha\)

Dăng chảy được số km trong 20 ngày là:

3200 : 8 x 20 = 8000 ( km )

Đáp số: 8000 km

FILL THE CORRECT WORD WHICH BEST FIT THE NUMBERS&MEANINGS:

1. Liverpool turned the _ _ _ _ _ _ against Barcelona with 4 to 0 and came up with the result of 4-3 in UCL.

2. Saigon c_ _ _ _ _ _ _ _ _n produces many kinds of materials, things which serve daily activities.

3. The Korean's film "Be with you" is _ _ _ _ _ / _ _ the book "I will come with the rain" of a Japanese writer.

4. Casio p_ _ _ _ _ _ _d its latest kind of calculator "570 VN PLUS".

5. Adding for 10 minutes before the exam, students have a _ _ _ _ _ of 55 minutes for it.

6. _ _ _ _ _ _'s Day is the day which is the average of 0 and 24, in May.

7. Lucas Moura scored _ _ _ _ _ goals against Ajax, which is called hattrick. Wijnaldum scored two goals against Barcelona, which is called a _ _ _ _ _ _.

8. Bee _ _ _ _ _ can cause many heart disease, strong affects on body and may lead to death.

Một ấm nhôm dung tích 3 lít chứa đầy nước ở 5 độ C. Cho hệ số nở dài của nhôm là \(2,4\cdot10^{-5}K^{-1}\)và hệ số dãn nở khối của nước ở 70 độ C là \(5,87\cdot10^{-4}K^{-1}\) . Lượng nước tràn ra khỏi ấm khi đun nước nóng tới 70 độ C bằng?

1. The fund-raisers haven't officially dacided where to send the proceeds of the concert

→ No official decision on where to send the proceeds of the concert has been made by the the fund-raisers.

2. It would have been a superb weekend if the weather had been better

→ But for the bad weather, it would have been a superb weekend.

3. Scientists have tried very hard to find a cure for this disease

-> Enormous effort has been made by scientists to find a cure for this disease.