The value of the calculation x 11/12 - [2/5 + x] = 2/3
(Enter the result as a decimal and most compact).
this is a problem in English:
A shop on the first day was seventy eight sacks of rice import, the second day were 91 sacks of rice import. Knowing enter second day over the first day was five hundred and ninety-one point five kg of rice. Ask the store both days enter how much ki - Lot - grams of rice? (Know the weight of each bag of rice is the same)
Answer: Both days are kg rice import stores.
(Enter the result as the most compact decimal)
Bài này rất dễ , bạn nào làm được mk sẽ ủng hộ 2 cái
Một bao cân nặng số kg là:
591,5:91=6,5(kg)
Số bao ngày đầu tiện nặng là:
6,5x78=507(kg)
Cả 2 ngày cửa hàng nhập khẩu là:
507+591,5=1098,5(kg)
Đs:...
Giải bài sau bằng tiếng việt: By subtracting a decimal number from a whole number, An gets 60,5 as the result. In the same operation, Toan moves the decimal point of the decimal number to the left one place and gets 80,75 as the result. Find the whole number.
GIẢI CHI TIẾT = CÁCH VẼ SƠ ĐỒ GIÚP MÌNH NHA
bằng cách trừ đi 1 số thập phân ở 1 số nguyên, An nhận được 60,5 kết quả.Trong cùng 1 lúc thao tác, Toàn di chuyển dấu thập phân của số thập phân sang 1 bên trái và nhận được 80,75 kết quả. Tìm số nguyên.
NẾU ĐÚNG !
CHÚC BẠN HỌC THẬT GIỎI!
: Subtract 114 from 5 times the number A, the difference will be 51.8 more than 3 times the number A. Find the value of the number A. Answer: A= (Write your answer as a decimal in the simplest form
Find the value of x such that 3/11 of x is 1/5.
Answer:
(round to three decimal places)
Tìm x biết 3/11 của x là 1/5 ( làm tròn đến chữ số thứ 3 sau dấu phẩy)
hình như là lấy chữ số thập phân thứ 3 thì phải? bạn lấy 1 nick giả thi thử đi!
Câu 9:
Subtract 114 from 5 times the number A, the difference will be 51.8 more than 3 times the number A. Find the value of the number A.
Answer: A=
(Write your answer as a decimal in the simplest form)
114 - 5 x A = A x 3 + 51,8
5 x A = A x 3 + 51,8 + 114
A x 2 = 51,8 + 114
A x 2 = 165,8
=> A = 165,8 : 2 = 82,9
Twenty years ago few people ( 1. realize )........... that computer were about to become part of our daily lives. This short period of time (2. see)....... enormous changes in businees, education and public administration. Jobs which (3. take) ......... weeks to complete in the past are now carried out in minute. Clerks who(4. spend).......... all day copying and checking calculation are now freed from these tedious tasks. In offices, the soft hum and clicking of word processors (5. replace) ......... the clatter of typewrites. Schoolchildren (6. become )............. as familiar with hardware and software as their parents (7 be)...... with pencils and exercise books. Computerization of public records(8. enable) ......... government departments to analyze the needs of citizens in detail. Some of us may wonder, however, whether life (9. really/ improve) ...................... as a result of these changes. Many jobs (10.disappear) ............... for example when intelligent machines (11.take)........ over the work. Employers complain that clerial staff (12. become) ........... dependent on calculator and canot do simple arithmetic. There are fears that governments (13.not/do) ............. enough to ensure that personal information held on computers is really kept secret. Certainly, many people may now be wondering whether the spread of computer (14. bring) ............ us as many problems as it (15. solve).........
1. realized |
6. have become |
11. took |
2. has seen |
7. were |
12. have become |
3. took |
8. has enabled |
13. have not done |
4. spent |
9. has really improved |
14. has brought |
5. has replaced |
10. disappeared |
15. has solved |
Câu 1 The function mm is defined on the real numbers by m(k) = \dfrac{k+2}{k+8}m(k)= k+8 k+2 . What is the value of 10\times m(2)10×m(2)? Answer: Câu 2 The function ff is defined on the real numbers by f(x)= ax-3f(x)=ax−3. What is the value of a if f(3)=9f(3)=9? Answer: Câu 3 The function ff is defined on the real numbers by f(x)= 2x+a-3f(x)=2x+a−3. What is the value of a if f(-5)=11f(−5)=11? Answer: Câu 4 The function ff is defined on the real numbers by f(x) = 2 + x-x^2f(x)=2+x−x 2 . What is the value of f(-3)f(−3)? Answer: Câu 5 Given a real number aa and a function ff is defined on the real numbers by f(x)=-6\times|3x|-4f(x)=−6×∣3x∣−4. Compare: f(a)f(a) f(-a)f(−a) Câu 6 There are ordered pairs (x;y)(x;y) where xx and yy are integers such that \dfrac{5}{x}+\dfrac{y}{4}=\dfrac{1}{8} x 5 + 4 y = 8 1 Câu 7 Given a negative number kk and a function ff is defined on the real numbers by f(x)=\dfrac{6}{13}xf(x)= 13 6 x. Compare: f(k)f(k) f(-k)f(−k) Câu 8 Given a positive number kk and a function ff is defined on the real numbers by f(x)=\dfrac{-3}{4}x+4f(x)= 4 −3 x+4. Compare: f(k)f(k) f(-k)f(−k). Câu 9 A=(1+2+3+\ldots+90) \times(12 \times34-6 \times 68):(\dfrac{1}{3}+\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{1}{6})=A=(1+2+3+…+90)×(12×34−6×68):( 3 1 + 4 1 + 5 1 + 6 1 )= Câu 10 Given that \dfrac{2x+y+z+t}{x}=\dfrac{x+2y+z+t}{y}=\dfrac{x+y+2z+t}{z}=\dfrac{x+y+z+2t}{t} x 2x+y+z+t = y x+2y+z+t = z x+y+2z+t = t x+y+z+2t . The negative value of \dfrac{x+y}{z+t}+\dfrac{y+z}{t+x}+\dfrac{z+t}{x+y}+\dfrac{t+x}{y+z} z+t x+y + t+x y+z + x+y z+t + y+z t+x is
Find the value of x such that \(\frac{3}{11}\) of x is \(\frac{1}{5}\).
Answer: x=
(round to three decimal places)
mk bt vòng 3 cs thập phân như nào òi ^^, dễ lém ^^
3/11 của x = 1/5
=> x = 1/5 : 3/11 = 11/15
=> x = 0,733
Choose the letter A, B, C or D to complete the passage below
Water pollution happens __________ (1) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (2) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.
Water pollution can be __________ (3) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (4) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.
Question 2:
A. both
B. only
C. well
D. either
Đáp án: B
Giải thích: cấu trúc “not only… (but)…also…”: không những…mà còn…
Dịch: Không những điều này gây ra thảm hoạ cho hệ sinh thái dưới nước, chất thải còn lắng xuống và gây ô nhiễm nước ngầm.