A square table is composed of one table top and four legs. If one cubic meter of wood can be used to make 50 tables or 300 legs of a square table, and there are 5 cubic meters of wood, how many cubic meters of wood can be used to make the table top and how many cubic meters of wood can be used to make the table legs, and the table top and legs can be made into a square table? How many square tables can be made?

According to the meaning of the question, x + y = 550x × 4 = 300y, the solution is x = 3Y = 2, ∵ 1 cubic meter of wood can make 50 table tops of square table, a square table has a table, ∵ 50x = 50 × 3 = 150. ∵ 150 square tables can be made. Answer: 3 cubic meters of table top, 2 cubic meters of table legs, 150 square tables

A square table consists of a table top and four legs. It can be made of 1 cubic meter of wood
1. A square table is composed of a table top and four legs. 50 or 300 legs can be made from 1 cubic meter of wood. If the legs of 5 cubic meters of wood match the table top, the table can be made into a square table ()
A. 100 sheets b.150 sheets c.200 sheets d.250 sheets "explain the reason, be specific"
2. The price of a commodity is a yuan. After the price is reduced by 10%, the price is reduced by 10%, and the sales volume increases sharply. The store decides to increase the price by 20%. Then the price of this commodity after the price is ()
A. A yuan b.1.08a yuan c.0.96a yuan d.0.972a yuan
3. The distance between a and B is () as long as the answer is "say the reason"

1. Suppose that you can make a total of x square tables, x = 50 + 4x = 300 = 5x = 150, so you should choose (b) because a table has only one surface, so the number of tables you can make per cubic meter = the wood you need to make a table, that is, x = 50 because a table has four legs, so the number of tables * 4 = a total number of table legs

A square table consists of a table top and four legs. If one cubic meter of wood can make 50 tables or 300 legs of a square table, and there are 50 cubic meters of wood, please design how many legs to make a square table, and how many legs to make a square table? (the wood will be used up)

If you have X for wood, you have 50-x times for desktop
300X=50(50-X)×4
300X=10000-200X
500X=10000
X=20
So use 20 cubic meters to make table legs and 30 cubic meters to make table top
There are 30 × 50 = 1500 desktops
So it's 1500 square tables
Answer: make table leg with 20 cubic meters, make tabletop with 30 cubic meters, match square table 1500

A cube with an edge length of 10 cm contains water with a depth of 6 cm. Pour all the water into a cuboid with a length of 15 cm, a width of 5 cm and a height of 8 cm

The volume of water in the cube is v = 10 × 10 × 6 = 600 cm ^ 3
After pouring into the cuboid, the water depth is V (15 × 5) = 600 ／ 75 = 8 cm

Decompose the following numbers into prime factors 28 72 130 111 208
Find the greatest common factor and the least common multiple of the following numbers
12 and 5 51 and 17 15,30,60 12,16,24

28＝2×2×7
72＝2×2×2×3×3
130＝2×5×13
111＝3×37
208＝2×2×2×2×13

If the length of a rectangle is reduced by 1.5 meters or the width by 1.2 meters, its area will be reduced by 6 square meters. What is the area of this rectangle______ ．

(6 / 1.2) × (6 / 1.5) = 5 × 4 = 20 (square centimeter); answer: the area of this rectangle is 20 square centimeter. So the answer is: 20 square centimeter

What are the sentence expressions
It was late autumn, the dew was very heavy, the fog was very heavy, and my father was not at home?

There are: 1. Narration 2. Description 3. Lyric 4. Discussion 5. Explanation
This sentence is a description

3. What's the rule of - 9,27, - 81

Yes, multiply the previous number by - 3 to get the next number
For example, 3 * - 3 = - 9
-9*-3=27
27*-3=-81
.
.
So here's the number
Hehe o (∩)_ ∩)o

How many meters per second is one kilometer per hour?

Their conversion factor is 3.6, that is to say, one meter per second is equal to 3.6 kilometers per hour, that is, one kilometer per hour is equal to 3.6 meters per second

Unit 2 text translation module 8

A long coat is not as small as a short coat
Ms. Jones: I need a new coat. There are two coats in the window. I like them very much. I think the grey coat is better than the blue one. It's 280 yuan, but now it's 200 yuan. That's a good price. What do you think?
Ms. Brown: I like grey, too. The blue coat is good, but it's not as good as the grey one
Ms. Jones: the blue one is very thick. Also, it's longer than the gray one. Do you think the gray one is as warm as the blue one? I want a warm coat for the winter
Ms. Brown: Yes, I think it's as warm as the blue one, but the blue one has two big pockets. You like big pockets, don't you?
Ms. Jones: Yes, but I think the grey coat is my size. The grey coat is small, so am I. The blue coat is not as small as the grey one. I still like the grey one. It's cheaper and better than the blue one. I think I'll buy the grey one!