24 mình chắc luôn

số bút xanh chiếm số  %  là 

1 / (1+4 ) = 0,2 =20%

ĐS

1 : ( 1+ 4 ) = 0,2

0,2 * 100 = 20

bản dịch đây

Một túi chứa viên bi xanh và bi đỏ chỉ. Nếu tỷ lệ số lượng viên bi màu xanh lá cây với số lượng viên bi đỏ là 1: 4 thì% của viên bi màu xanh.

1:4=0.25

0.25=25%

mike 's marbles is :

  100 - 12 = 88 [marbles]

                   d/s

hinh  nhu de bi sai roi sao co so vien bi cua Tom roi ma con hoi so vien bi cua Tom nua

eo phai dau

Gọi số bút trắng là a, bút đen là b

Ta có :

a = b x \(\frac{2}{3}\)

(a - 6) = (b + 6) x \(\frac{1}{2}\)

a - 6 = b x \(\frac{1}{2}\)+ 6 x \(\frac{1}{2}\)

a - 6 = b x \(\frac{1}{2}\)+ 3

b x \(\frac{2}{3}\)- 6 = b x \(\frac{1}{2}\)+ 3

b x \(\frac{2}{3}\)- b x \(\frac{1}{2}\)= 3 + 6

b x \(\frac{1}{6}\)= 9

b = 9 : \(\frac{1}{6}\)= 54

a = 54 x \(\frac{2}{3}\) = 36

Đáp số : 36 cái bút trắng

is twenty four marbles 

if my answer correct k for me 

you two made a mistakes

đây là tiếng anh hay toán đấy bạn ơi

Make sentences

1.Jack/be/not/old/as/his wife

........JACK ISN'T AS OLD AS HIS WIFE............................

2.this test/be/not/difficult/as/that one

......THIS TEST ISN'T AS DIFFICULT AS THAT ONE.......................................

3.Mary/young/student/in the class

............MARY IS THE YOUNGEST STUDENT IN THE CLASS.........................

4.Mary/study/English/well/than/her sister

.......MARY STUDIES E BETTER THAN HER SISTER DOES..............................................

5.Noone/speak/English/fluently/Peter/in the class

......NOONE SPEAKS E MORE FLUENTLY THAN PETER IN THE CLASS..............................................

6.Of/two boys/Peter/be /intelligent

......OF TWO BOYS PETER IS MORE INTELLIGENT....................................................

7.Tom /run/faster than/I did

........TOM RAN FASTER THAN I DID............................................

8.That/be /onteresting film/I've ever seen

.......THAT IS THE MOST INTERESTING FILM THAT I'VE EVER SEEN....................................................

9.Ann/be/pretty/student here

.......ANN IS THE PRETTIEST STUDENT HERE......................................

10.Tom /be/young/of the three boys

.........TOM IS THE YOUNGEST OF THE 3 BOYS........................................................

1. jack isn't as old as his wife

2. this test isn't as difficult as that one

3. mary is the youngest student in my class

4. mary studies E better than her sister

5. noone speaks E fluently than peter in my class

6. of two boys peter is more intelligent

7. tom ran faster than i did

8. that is the most interesting film that i've ever seen

9. ann is prettiest student here

10. tom is the youngest of the three boys

ak bạn ơi , câu 5 từ ' my ' ghi lại là the nha mình nhầm nha thanks

VIII. Rewrite the following sentences without changing the meaning, using the word given

52. Tom drives his car more carefully than Peter.                                         (carelessly)

Peter drives his car ________________more carelessly___________________ than Tom.

53. Living in the country is more inconvenient than living in the city.            (convenient)

Living in the city is _____more convenient than_______________________________ living in the country.

54. I have never visited such a historic temple.                                               (historic)

This is _______the most historic____________________ temple I have ever visited.

55. This is the most luxurious hotel in this city.                                               (more)

This hotel is ____is more luxury ______________________ than any other hotel in this city.

56. Margaret Thatcher was born and spent her childhood in the town of Grantham, Lincolnshire, England. (grew)

___Margaret Thatcher was born and grew up in the town of Grantham, Lincolnshire, England_________________________________________________________________

57. The doctor told my father to stop smoking.                                             (give)

_________The doctor told my father to give up smoking.       ___________________________________________________________

58. My aunt has got two teenage children, but they don’t seem to have a good relationship with each other. (get)

___My aunt has got two teenage children, but they don’t seem to get on with each other. _________________________________________________________________

59. His business is going badly – he’ll have to stop doing it soon.                      (close)

________His business is going badly – he’ll have to close down it soon.      ____________________________________________________________

60. The cost of living has been increasing considerably in the past few weeks.      (up)

___The cost of living has been going up considerably in the past few weeks. _________________________________________________________________

61. You should use a dictionary to check the meaning of new words.                   (look)

___ You should use a dictionary to look up new words_________________________________________________________________

62. This international conference is extremely important. Make a note in your diary. (put)

This international conference is extremely important ____put it down_________________ in your diary.

2 ... not get as many good marks as Peter did

3 ...... not as good at swimming as they used to be

4 ..... rained heavily, we were late for class

2. Peter got more good marks than Tom.

- Tom did not get as many good marks as Peter 

3. They used to be better at swimming than they are now.

-They are..............not as good at swimming as they used to be.........

4. Because of the heavy rain, we were late for class.

-  Because it rained heavily, we were late for class