mẹ có 5 triệu đồng

mẹ dành 2 triệu đồng biếu ông bà chiếm : \(\dfrac{2}{5}.100\%=40\%\)

mẹ dành 500 nghìn đồng mua quần áo cho con chiến: \(\dfrac{500000}{5000000}.100\%=10\%\)

mẹ dành 1800000 đồng mua thực phẩm tết chiếm:\(\dfrac{1800000}{5000000}=36\%\)

Số tiền còn lại lì xì con cháu chiếm:100%-40%-10%-36%=14%

Bạn chỏ chuột vào phần ngăn cách giữa màu xám màu trắng nó rồi kéo dài ra

Cho (O) đường kính AB.Hai điểm I,K thuộc AB sao cho OI=OK,M bất kì thuộc (O).MO,MI,MK cắt (O) lần lượt tại E,C,D cắt AB tại F,EI cắt DF tại N,MI cắt EF tại H.CMR

a)ENCH nội tiếp

b)EF là tiếp tuyến

Tham khảo

There is a famous animated film that I think everyone of us has seen at least once, and it is Tom and Jerry. Almost everyone is aware of the story between the miserable Tom and the mischievous mouse Jerry, and it also was part of my childhood memories. The film is about a life under the same roof between two enemies Tom and Jerry, and of course cat and mouse are always hard to get along with. Tom's owner is very afraid mouse, so she always asks Tom to catch the little mouse living in a cave that he digs on the wall. Tom is a quite lazy cat, and he often has to chase Tom so that he is not scolded by his owner or in exchange for a good meal. Sometimes, Jerry also makes mischievous jokes to tease Tom such as pull out his hair or steal his milk. Another character in the movie is the dog Spike, and he does not seem to like Tom at all. In the chasing scenes of the two main characters, they sometimes run to the garden - Spike's residence - and disturb his sleep. Most of the time, Tom would be the one who suffers Spike's anger while Jerry is having a big laugh. The plot is simple but the film Tom and Jerry always attracts a lot of audiences of all ages thanks to the lovely characters and funny circumstances. Although many years have gone by, the television channels have often displayed this film, and this is the indispensable spiritual food children.

1.16+(27-7.6)-(94-7-27.99)=16+27-7.6-94+7+27.99

                                           =(27+27.99)+(27+7-94)+16

                                           =27.100-60+16

                                           =2700-44=2656

2.A=\(\dfrac{2}{1.4}+\dfrac{2}{4.7}+\dfrac{2}{7.10}+...+\dfrac{2}{97.100}\)

     =\(\dfrac{1}{1}-\dfrac{1}{4}+\dfrac{1}{4}-\dfrac{1}{7}+...+\dfrac{1}{97}-\dfrac{1}{100}\)

     =\(1-\dfrac{1}{100}=\dfrac{99}{100}\)

Tham khảo

Nam’s grandparents live in a small house in the countryside. There isn’t a school, a bookshop, a hotel, a hospital, a restaurant near it, but there is a river. It is long and nice. There is a rice paddy behind the house. There is a rice paddy in front of it, too. To the left of the house is a small market. To the right of the house is a big garden. His grandparents grow a lot of vegetables and flowers in the garden. He loves them and their house very much. It is quiet and peaceful. He visits it every summer.

1Near Nam's grandparents house , there is ___________________

a, A school b, a bookshop c,a restaurant d,a long river

2What is behind the house ?

a. A big garden b,a rice paddy c, a long river d, a small market

3What's is to the right of the house

a, A big garden b, a rice paddy c, a long river d, a small market

4Is there a rice paddy in front of the house ?

a, No there's b, No,there isn't c,yes there is d, yes,there a

5 Why does he visit the house every summer - Because __________________

a, He loves that house c, his parents live in that house

b, he doesn't like his house d, he loves his grandparent amd that house

tổng học sinh 2 lớp là 26x2=52 học sinh

Số học sinh lớp 4A là (52+2):2=27 học sinh

số học sinh lớp 4B là 27-2=25 học sinh

Gọi chiều dài và chiều rộng lần lượt là a và b

Theo đề bài,Ta có a-b=97

=>a=b+97

Ta có a+b=307

hay b+97+b=307

=>2b=210

=>b=105m

=>a=b+97=105+97=202m

diện tích là axb=202x105=21210m vuông

take down

82,33