most familie ... many chung cakes
A.sell B.cook C.buy D.make
Giúp mik vs nhanh nha
K
Khách
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NH
2
Những câu hỏi liên quan
19 tháng 2 2022
7 ??
8 humid
9 difficult
10 famous
11 Tet
12 Use siginificant foods to worship their ancestors
13 No, they don't
14 sticky rice, pork, green beans and other spices, wrapped in green leaves
19 tháng 2 2022
Tet is the biggest festival in Viet Nam. To celebrate Tet, Vietnamese people make many traditional foods. The most important food includes Chung cakes, sausages, boiled chicken, spring rolls, and sticky rice. Chung cake is made of sticky rice, pork, green beans, and other spices, wrapped in green leaves; therefore, this cake need a lot of preparation. The cake can be kept for a long time, even though the weather is often humid during the Tet. Other significant foods that cannot be missed to worship the ancestors are sausages, spring rolls, and sticky rice. Because sausages are difficult to make, people often buy them from famous suppliers. However , sticky rice and spring rolls are easier to prepare and must be served immediately after they are cooked, so they are often made at home.
a. Find the words from the text that have the same meaning of these words/phrases:
7. deliciuos: …………………… 8. wet: humid
9. not easy:difficult 10. wellknown: famous
b. Answer the questions:
11. Which festival is the most popular in Viet Nam? Tet
12. What do Vietnamese people worship their ancestors?make many traditional foods
13. Do they make sausages by themselves? No, they don't
14. Which ingredients are used to make Chung cakes? Chung cake is made of sticky rice, pork, green beans, and other spices, wrapped in green leaves; therefore, this cake need a lot of preparation
Chúc em học tốt
DH
12
AH
Akai Haruma
Giáo viên
27 tháng 8 2023
Lời giải:
Đặt $\frac{a}{b}=\frac{c}{d}=k$
$\Rightarrow a=bk, c=dk$. Khi đó:
$\frac{a-b}{b}=\frac{bk-b}{b}=\frac{b(k-1)}{b}=k-1(1)$
$\frac{c-d}{d}=\frac{dk-d}{d}=\frac{d(k-1)}{d}=k-1(2)$
Từ $(1); (2)\Rightarrow \frac{a-b}{b}=\frac{c-d}{d}$
-------------------
$\frac{2a+3b}{2a-3b}=\frac{2bk+3b}{2bk-3b}=\frac{b(2k+3)}{b(2k-3)}=\frac{2k+3}{2k-3}(3)$
$\frac{2c+3d}{2c-3d}=\frac{2dk+3d}{2dk-3d}=\frac{d(2k+3)}{d(2k-3)}=\frac{2k+3}{2k-3}(4)$
Từ $(3); (4)\Rightarrow \frac{2a+3b}{2a-3b}=\frac{2c+3d}{2c-3d}$
DM
1
AH
Akai Haruma
Giáo viên
12 tháng 8 2023
Lời giải:
a. Với $n$ nguyên khác -3, để $B$ nguyên thì:
$2n+9\vdots n+3$
$\Rightarrow 2(n+3)+3\vdots n+3$
$\Rightarrow 3\vdots n+3$
$\Rightarrow n+3\in\left\{\pm 1; \pm 3\right\}$
$\Rightarrow n\in\left\{-2; -4; 0; -6\right\}$
b.
$B=\frac{2n+9}{n+3}=\frac{2(n+3)+3}{n+3}=2+\frac{3}{n+3}$
Để $B_{\max}$ thì $\frac{3}{n+3}$ max
Điều này đạt được khi $n+3$ là số nguyên dương nhỏ nhất
Tức là $n+3=1$
$\Leftrightarrow n=-2$
c. Để $B$ min thì $\frac{3}{n+3}$ min
Điều này đạt được khi $n+3$ là số nguyên âm lớn nhất
Tức là $n+3=-1$
$\Leftrightarrow n=-4$
TP
2
TT
1
JH
18 tháng 4 2022
Ngày thứ hai nhà máy sản xuất được số tấn đường là:
1,17-0,12= 1,05 (tấn)
Cả hai ngày thứ nhất và thứ hai, nhà máy sản xuất được số tấn đương là:
1,17+1,05=2,22 (tấn)
Ngày thứ ba nhà máy sản xuất được số tấn đường là:
4,14-2,22=1,92 (tấn)
"Chúc em học tốt."
AH
Akai Haruma
Giáo viên
16 tháng 7 2023
Lời giải:
a. $2^3.8=2^3.2^3=2^6$
b. $5^2.25=5^2.5^2=5^4$
c. $27:3^2=3^3:3^2=3^1$
d. $4^2.16=4^2.4^2=4^4$
e. $5^3.5^6=5^9$
f. $3^4.3=3^5$
g.$3^5.4^5=(3.4)^5=12^5$
h. $8^5.2^3=(2^3)^5.2^3=2^{15}.2^3=2^{18}$
i. $a^3.a^5=a^8$
j. $x^7.x.x^4=x^{7+1+4}=x^{12}$
k. $5^6:5^3=5^3$
l. $3^{15}:3^3=3^{15-3}=3^{12}$
m. $4^6:4^6=4^0=1$
n. $9^8:3^2=(3^2)^8:3^2=3^{16}:3^2=3^{14}$
o. $a:a=a^0=1$
p. $5^8.5.5^2=5^{8+1+2}=5^{11}$
q. $4.4^3=4^4$
r. $3.3^4=3^5$
s. $36.6^5=6^2.6^5=6^7$
t. $2^5.2^3=2^8$
u. $3^{10}:3^3=3^7$
v. $2^{10}:2^3=2^7$
w. $5^8:25=5^8:5^2=5^6$
x. $16:2^3=2^4:2^3=2^1$
y. $4.2^3=2^2.2^3=2^5$
z. $2^{10}:4=2^{10}:2^2=2^8$
HN
10 tháng 1 2022
III. Reading and choose the best answer.
Tet is the biggest festival in Vietnam. To celebrate Tet, Vietnamese people make
many tasty traditional foods. The most important food includes Chung cakes, sausages,
boiled chicken, spring rolls, and sticky rice. Chung cake is made of sticky rice, pork, green
beans, and other spices, wrapped in green leaves. However, this cake needs a lot of
preparation . This cake can be kept for a long time, even though the weather is often humid
during Tet. Other significant foods that cannot be missed to worship the ancestors are
sausages, spring rolls, and sticky rice. Because sausages are difficult to make, people often
buy them from famous suppliers. However, sticky rice and spring rolls are easier to prepare
and must be served immediately after they are cooked, so they are often made at home.
Câu 37. Do Vietnamese people make many tasty traditional kinds of food to celebrate Tet?
A. Yes, it do.
B. No , they didn't.
C. No ,they don't. D. Yes, they do.
Câu 38. What do the most important kinds of food at Tet include?
A. Chung cakes, sausages, boiled chicken, spring rolls, fish, and sticky rice.
B. Chung cakes, fruits ,sausages, boiled chicken, spring rolls, and sticky rice..
C. Chung cakes, sausages, boiled chicken, spring rolls, and sticky rice.
D. Chung cakes, sausages, boiled chicken, pork , spring rolls, and sticky rice.
Câu 39. Which ingredients are Chung cakes made of ?
A. Sticky rice, pork, soy beans, and other spices, wrapped in green leaves.
B. Sticky rice, pork, green beans, and other spices, wrapped in green leaves.
C. Sticky rice, beef, green beans, and other spices, wrapped in
D. Sticky rice, lamb, green beans, and other spices, wrapped in
green
leaves.
green
leaves.
Câu 40. Must sticky rice and spring rolls be served immediately after they are cooked?
A. Yes, they will
B. Yes, they do.
C. Yes, they are.
D. Yes, they must.
Most families ... many Chung cakes
A.sell B.cook C.buy D.make