Nửa P sân trường là : 330/2 = 165 ( m )

Gọi CD là 7 phần, CR là 4 phần. Tổng số phần bằng nhau là : 7 + 4 = 11 ( phần )

CD sân trường là : 165/11 * 7 = 112 ( m )

CR sân trường là : 165 - 112 = 53 ( m )

S sân trường là : 112 * 53 = 5936 ( m² )

Đ/s : 5936m²

giúp mik với,please

sau khi tiêu 3 /4 số tiền của mình thì BÌNH  còn lại số phần tiền là :       

1 - 3/4 = 1/4 (số tiền )

sau khi tiêu 2/3 số tiền của mình thì  AN  còn lại số phần tiền là :

1 - 2/3 = 1 / 3 ( số tiền )

1 / 4  số tiền của BÌNH bằng 1 /3  số tiền của AN 

ta có sơ đồ :

AN      : |-----|-----|-----|                                                       tổng 56 000 đ 

BÌNH  : |-----|-----|-----|-----|

số tiền của AN là : 56 000 : ( 3 +4 ) * 3 = 24 000 đ 

số tiền của BÌNH là :  56 000 - 24 000 =  32 000 đ 

đáp số : BÌNH : 32 000 đ

                   AN  : 24 000 đ

1/ I spent my childhood in the village

→I used to spend my childhood in the village .

2/ He gave up smoking

→He used to give up smoking

3/ I used to go fishing with my father

→I don't go fishing with my father no longer .

4/ I haven't heard from her for nearly 10 years

→It's nearly 10 years since I heard from her

5/ It's 15 years since i started learning English

→I have learned English for 15 years

6/ I used to own a bicycle

→I don't own a bicycle no longer .

1/ I spent my childhood in the village

→I used to spend my childhood in the village .

2/ He gave up smoking

→He used to give up smoking

3/ I used to go fishing with my father

→I don't go fishing with my father no longer .

4/ I haven't heard from her for nearly 10 years

→It's nearly 10 years since I heard from her

5/ It's 15 years since i started learning English

→I have learned English for 15 years

6/ I used to own a bicycle

→I don't own a bicycle no longer .

nếu giảm 1 trong 2 số 7 đơn vị  thì tích sẽ giảm đi 7 lần thừa số kia ( thừa số còn lại )

s        

thừa số  còn lại là : 483 : 7 = 69 

thừa số bị giảm là : 5037 : 69 = 73 

đáp số  ...........

1/ I haven't enjoyed myself so much for ages

→It's ages since i enjoyed myself.

2/ It took us forty minutes to fly from Vinh to HN

→We spent forty minutes flying from Vinh to Ha Noi.

3/ I have been there for 5 years

→It's 5 years since i was there.

4/ It took her two hours to explain the lesson

→She spent  two hours explaining the lesson.

5/ This is the first time i have eaten this food

→I haven't  eaten this food before.

k cho mình nha ~ thanks

1/ I haven't enjoyed myself so much for ages

→It's ages since I enjoyed myself

2/ It took us forty minutes to fly from Vinh to HN

→We spent forty minutes flying form Vinh to HN 

3/ I have been there for 5 years

→It's 5 years since I was there

4/ It took her two hours to explain the lesson

→She spent 2 hours explaining the lesson

5/ This is the first time i have eaten this food

→I haven't eaten this food before

1) This is the first time I saw the film

2) I haven't cut my hair for 2 months 

3) It took me 5 hours to prepare the meal 

4) I haven't gone for coffee for 5 days

5) I have started working as a writer for 2 years

1/ I haven't seen the film before

\(→\)This is the first time I saw the film .

2/ I last had my hair cut 2 months ago

\(→\)I haven't cut my hair for 2 months

3/ I spent 5 hours preparing the meal

\(→\)It took me 5 hours to prepair the meal .

4/ The last time i went for coffe was 5 days ago

→I haven't  gone for coffe for 5 day .

5/ I started working as a writer 2 years ago

\(\rightarrow\)I have worked as a writer for 2 years 

1/ I wrote this book in 3 weeks

→It took me 3 weeks to write this book .

2/ It's ages since they heard from her

→They haven't heard from her for ages.

3/ The last time i heard from her was 5 years ago

→I haven't  heard from her for 5 years .

4/ I haven't played tennis for 6 years

→The last time I played tennis was 6 years ago

5/ I had to spend 2 days traveling to HCM city

→It took me 2 days to travel to HCM City .

1/ I wrote this book in 3 weeks

→It took me 3 weeks to wrote this book

2/ It's ages since they heard from her

→They haven't heard from her for ages

3/ The last time i heard from her was 5 years ago

→I haven't heard from her for 5 years 

4/ I haven't played tennis for 6 years

→The last time I played tennis was 6 years ago

5/ I had to spend 2 days traveling to HCM city

→It took me 2 days to travelling to HCM city

bài  2:

NHU CU QUA