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Sau ngày đọc thứ nhất, phân số chỉ số trang còn lại là:
1 - 2/7 = 5/7 số trang
Phân số chỉ số trang đọc ngày thứ hai là:
5/7 x 9/20 = 9/28 số trang
44 trang ứng với:
5/7 - 9/28 = 11/28 số trang
Số trang của quyển sách là:
44 : 11/28 = 112 trang
Đáp số : 112 trang
P/số chỉ số trang sách ngày thứ 2 đọc đc là
\(\left(1-\frac{2}{7}\right).\frac{9}{20}=\frac{9}{28}\)(tổng số trang)
P/số chỉ số trang sách ngày thứ 3 đọc đc là
\(1-\frac{2}{7}-\frac{9}{28}=\frac{11}{28}\)(tổng số trang)
Quyển sách Hoa đọc đc có số trang là
\(44:\frac{11}{28}=112\)(trang)
Đ/số : 112 trang
Ủng hộ mk nha,chúc bn học tốt!!
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1. do you live in an apartment?
2. are there any stores on the street?
3. is your house new?
4. is a hotel near your house?
5. is it quiet here?
6. are the flowers beautiful?
7. does she live in a big house?
8. is the lake behind the house?
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My daughter is fifteen years old.
What do they do?
They are engineers
We are in the/our living room now
How do you spell your name?
They live in a house in the city.
There are five people in Hoa's family
Who are they?
-They are nurses
What does your mother do?
They are students,that is their school
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1 Ba doesn't get up at six o'clock every morning.
2 How many classrooms are there in his school?
3 How do you spell this word, Minh?
4 Stand up and open your book.
5 I am twenty-one years old and i'm a student
7 Is your house opposite the stadium?
8 There is a museum to the right of the house
9 In the neighborhood, there is a hospital and a factory.
10 Our class is on the third floor.
11 Nhung's house has six rooms
12 What time does your brother get up ?
Còn câu 6 mình thấy đúng mà!
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1. are the sudents go to school at 6.30?
no,they aren't
2. are there any flowers in the garden?
yes, there are
3. is her sister a good student ?
no,she isn't
4. does linh have math on wed and thursday?
yes, she does
5. is the bank opposite the supermarket ?
no,it isn't
6. is there a lake in front of their house ?
yes ,is there
7. do hoa and huong play tennis after school ?
no ,they don't
8. is van`s brother twenty years old ?
yes ,he is
9. does mr. kha live in a big house in HCM city?
no ,he doesn't
(Tớ sẽ ko chịu trách nhiệm về độ chính xác của đáp án. Nhưng đề bài là j v?)
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(Các cau dưới đây đã được sửa)
There is ONE mistake in each sentence,find and correct it:
a)What time does she start work?
b)Nam lives in a house in the country.
c)Is there a flower garden behind the house?
d)How many floors does your school have?
e)There is a supermaket near my house.
f)There is an old temple near our house.
g)How does Mr.Dong travel to work?
h)After dinner,she does her homework.