Ex5
will stay / has / isnt rain / recycled - wouldnt produce / dont water - will die / is bad - wont go / would save - werent waste / would happend - kept / didnt stop - would endanger / dumped - wouldnt be 

1 Could you tell me how to get to the police station please?

2 How much does it cost to mail a letter to USA?

3 In the future we will have less work and more money to spend

4 My brother is an engineer and he works at factory in the suburb of the capital

5 Eating and talking with friends are the most common ways of relaxing at recess in many countries

c

c

b

a

c

b

b

b

b

b

c

d

             chu vi hình tròn lớn là : 

   (15 + 60) x 2 x 3.14 = 471 (cm)

             chu vi hình tròn bé là :

    60 x 2 x 3.14 = 376.8 (cm)

           CV hình tròn lớn hơn CV hình tròn bé số cm là :

     471 - 376.8 = 94.2 (cm)

                đáp số : 94.2 cm

3 nha !!!! học tốt !!!

P hình tròn lớn là : (15+60)*2*3.14=471(cm)

P hình tròn bé là : 60*2*3.14=tự làm nhé

P HT lớn hơn P HT bé số cm là : 471-?=94.2(cm)

In spite of his broken leg, he managed to get out of his car.

Unless anyone put the coal in, the fire will go out.

The man who looks worried is being questioned by the police.

Despite the heavy rain, they go on collecting the trash along the beach.

If you practise speaking English every day, you can improve your English.

We have cooked for the party for four hours.

In spite of the bad weather, he climbed to the top of the mountain.

B

1 D

2 A

3 D

4 B

5 A

6 D

7 A

8 B

9 C

10 B

VI

1 eyes

2 if

3 not

4 saying

5 This

6 who

7 for

8 trying

9 back

10 adult

reduction

expectation

historical

creatures

decorator

chemically

Deforestation

easy-going

endangred

hopeless

unemployment => unemployed
ever=>x

does ... cost=>... costs

In spite=>because

calling=>called

because=>because of

have=> have to

time=>times

Thay x=1 vào pt ta được pt ẩn m: 1-2(m-1).1+m=0

<=> 1 - 2m + 2 + m = 0

<=> m=3

Thay m=3 vào pt đầu và được: x² - 4x + 3 = 0

<=> x² - x - 3x + 3 =0

<=> x(x-1) - 3(x-1)=0

<=> (x-3) (x-1)=0

<=> x-3=0 hoặc x-1=0

<=> x=3 hoặc x=1

Vậy: Khi x=1 thì m=3, nghiệm còn lại của pt là x=3

Gọi chiều dài, chiều rộng của hình chữ nhật đó là: a,b

ta có: - Chiều dài, chiều rộng tỉ lệ với 9;4

\(\Rightarrow\frac{a}{9}=\frac{b}{4}\)

- Chiều dài hơn chiều rộng 10 m

=> a - b = 10

ADTCDTSBN

có:\(\frac{a}{9}=\frac{b}{4}=\frac{a-b}{9-4}=\frac{10}{5}=2\)

=> a/9 = 2=> a = 18

b/4= 2=> b = 8

=> P = (18+8) x 2= 52 (m)