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3060 cm3=______ Decimeter 3=______ It's a liter
3060 cm3 = 3.06 decimeter 3 = 3.06 liter
An automobile transportation company plans to ship two kinds of vegetables (A and b) to other places for sale (each vehicle is fully loaded, and only one kind of vegetable can be loaded)
It is known that one car can grow 1 ton of vegetables, or can hold 1.5 tons of vegetables. If eight cars carry 11 tons of two vegetables to a for sale, how about the distribution of cars carrying a and B vegetables? How many of them each
Set X tons of vegetable a and Y tons of vegetable B
X+Y=11
X+Y/1.5=8
be
X=2
Y=9
There are 2 tons of A-type vegetables, 9 tons of B-type vegetables, 2 vehicles carrying B-type vegetables and 6 vehicles carrying B-type vegetables
How many tons is a stone
It depends on the material of the stone. It's hard to say that some stones are light and some are heavy. Generally, they are 1500kg / m3. In our construction site, the stones are heavy, reaching 1500-1600kg / m3, and some are 1700kg / m3
How to solve (1 + 0.2) x + (50-x) * (1-0.25) = 51
0.2 is a fifth, 0.25 is a quarter
(1+0.2)X+(50-X)*(1-0.25)=51
1.2x+(50-x)*0.75=51
1.2x+37.5-0.75x=51
1.2x-0.75x=51-37.5
0.45x=13.5
x=30
A 343cm cube block was sawed into eight small cubes of the same size, and the surface area of each small cube block was calculated
The volume of each small block is 343 / 8 cubic centimeter
The edge length of the small block is 7 / 2 cm
The surface area of small cube wood block is 6 * 7 / 2 * 7 / 2 = 147 / 2 square centimeter
What is 60 ° 28 '/ 3
28' = 9' × 3 + 1'
1' = 60"
60°28' ÷ 3 = 20°9'20"
I. solving the equation
1、1-（4-3x）=9
2、5（x-1）-7（x+5）=11（x+1）
3. 9-11y = 10Y minus seven and a third
4、2（x-2)-3（4x-1）=9（1-x）
5、5（x-4）-7（7-x）-9=12-3（9-x）
Give me a problem-solving process, if you have time, you can talk about ideas, and you don't have to talk about ideas, but the process must be!
1.1 - (4-3x) = 9 2.5 (x-1) - 7 (x + 5) = 11 (x + 1) 3.9-11y = 10Y - seven and one-third 1-4 + 3x = 9 5x-5-7x-35 = 11x + 11 9-11y-10y = negative seven and one-third 3x = 12 - 13X = 51 - 21y = negative 16 and one-third x = 4 x = negative 13 / 51 y = seven ninths 4.2 (X-2) - 3 (4x
Given that the opposite number of a is 1 and 3 / 2, and the opposite number of B is - 2 and 1 / 2, find the value of the algebraic formula a-2b, a = 3B
Definition * is a new operation on rational numbers a and B, a * b = 2Ab + 2008, try to calculate the value of 2 * 3 * 4
a*b=2ab+2008
2*3*4
=(2x2x3+2008)*4
=2020*4
=2x2020x4+2008
=18168
There are 1800 fruit trees in the orchard. The pear tree is twice as much as the apple tree, and the apple tree is three times as much as the peach tree
Step one:
Suppose: there are x apple trees
2X+X+1/3X=1800
3X+1/3X=1800
10/3X=1800
X=540
Answer: there are 540 apple trees
Step 2: 540 * 2 = 1080 (trees)
A: there are 1080 pear trees
This is the method of setting X. I don't know if you have learned it,
RELATED INFORMATIONS
- 1. Given A-B = 2, B-C = 1, find the value of the algebraic formula A ^ 2 + B ^ 2 + C ^ 2-ab-bc-ac
- 2. If the decimal point of a number is moved two places to the right, the number obtained is 118.8 larger than the original number, and the original number is ()
- 3. 810x811x812.x2011 divided by the maximum value of n power of 810 (the result is a positive integer) n
- 4. Decomposition factor: (1) 2A (x-a) + B (A-X) - 3C (x-a) (2) (a ^ 2 + 1) ^ 2-4a ^ 2 (3) x ^ 2-2xy + y ^ 2 + X-Y
- 5. (x+y)(x2-xy+y2)
- 6. This year, 56 students in a class have subscribed to "junior high school students' Mathematics Learning". In the first half of this year, 25 boys and 15 girls have subscribed to the magazine. In the second half of this year, 26 boys and 25 girls have subscribed to the magazine, and 23 boys have subscribed to the magazine all year round. So the number of girls who have subscribed to the magazine only in the first half of this year is 25______ Name
- 7. If 12x2m − 1 − 8 ＞ 5 is a linear inequality of one variable, then M=______ ．
- 8. Is the system of equations x = 1 (1) y + 2 = 3 (2) a system of linear equations of two variables? Do the two equations of the system of linear equations of two variables have to contain two unknowns? Isn't a system of linear equations of two variables only composed of two linear equations of two variables?
- 9. Four seasons reading answers of comprehensive rain detection in the second volume of seventh grade Chinese exercise book
- 10. Answers to the matching exercise book of the people's education press of the people's Republic of China
- 11. As shown in the figure, the masses of the two wooden blocks are m and m, and the stiffness coefficient of the middle spring is K. the lower end of the spring is connected with m, and M is not connected with the spring. Now press m down for a certain distance to release it, and it will move harmoniously up and down. In the process of vibration, m never leaves the spring. Try to find: (1) the maximum amplitude of M vibration; (2) the maximum pressure of m on the ground when m vibrates with the maximum amplitude
- 12. Factorization of 2 (A-3) & # - a = 3
- 13. Given X & # 178; + X-1 = 0, find the value of (x + 1) (X & # 178; - 2x + 6) - (- x) &# 178; + (2x-1) &# 178;)
- 14. English translation Boffins are the clever ones in class .They always come out top in tests.To be a boffin ,you must be good at all the subjects . Boffins are clever ,but are never the most popular people in the school .They have freiends amongst themselves.But In society, they are normally shy and outlying. Boffins prefer their studies to the company of other people.Edwin is the oclassic example of a boffin.He has friends, but they are also boffins.Edwin is extremely clever.His vosice has a very strong British accent that other people find funny . A boffin’ s interest is something that other people may not be interested in.For example ,they may like to play games on computer that others may find boring .In their spare time,boy boffins feel like playing war games and strategies .Boffins prefer technology such as computers to having sports outside.Normally , they are not very sporty and arebad at P.E. Boffins also act in a manner that is slightly strange.They don’t care what other people will thihk of them because of these outbursts . While most children take the word “boffin”in a negative way,adults,especially teachers approve of boffins.Boffins spend their time in class actually listening attentively instead of messing around .This is mainly the reason why they appear to be more intelligent than everyone else around them. Although they may not be the most exciting people,I like boffins .They have intelligent minds of their own and are not afraid to show them.Boffins are the cleverest ones ,and there’s nothing bad about standing out in that way.
- 15. "Today I read an article" help me translate into English
- 16. Translation of an English essay I have some good frends who live in Hilltop Village.I like to go there to play with them.We like to play in the park,which is called Central Park.Ken Road goes along one side of the park,and Green Street goes along another side of the park.Green Street joins Ken Road.On the corner of the Ken Road and Green Street is Sally`s house.Helen lives next to Sally.Across the street from Sally and Helen is Jenny`s house.She lives next to Mary.Across the street from Mary`s house is a small hotel called the Golden Dragon.It is on the corner of Green Street and Ken Road,next to the hospital. Please translate this passage for me, add 100 points correctly
- 17. English translation Hey, Ben.For the party next week,should we ask people to bring food? Ben：No,let's order food from a restaurant.If we ask people to bring food,they'll just bring potato chips and chocolate because they'll be too lazy to cook. Jeff： OK.For the games, do you think we should give people some small gifts if they win? Ben：I think that's a great idea!If we do that,more people will want to play the games. Jeff：Yes,the games will be more exciting,too.
- 18. English Text Translation Mr.brown was on his way home from the railway station It was very late,ang he was alone on thedark road. Suddenly he heard someone behing him. He began go walk faster.The man him walked faster, too.He walked more slowly ,and theman move slowly, too.He began to run,and man was following him and he was really scared Mr.brown ’s only thought was,”I’m in great danger!He stood up and shouted “What do you want?Why are you following me?” The man was so tired that he couldn’t speak”I didn’t know that you were avery good runner,”he said at last”Ihave to go to Mr.White ’s house,but I don’t know the way.A man at the station told me that you lived next to Mr.Whire ’s and he told me to follow you I’m too tired to gou any farther
- 19. The translation of the advertising text of PEP
- 20. Translation of the article 2b on page 29 of unit 5