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English composition about project hope? There are 60-80 words of hope project,
project HopeIn class,our teacher told us something about Project Hope.She said some children in the country couldn't go to school because their parents were too poor to send their children to school.S...
On the English composition of Hope Primary School 1. Many children in rural China are out of school Two 3. Many hope primary schools have good conditions Hope more people will help hope primary school About 5.80 words
Every year there are a lot of children in the country of China unable to go to school because of the poverty
How to write an English composition about project hope
Education is the key to China's modernization. The extent to which children's education is directly related to the improvement of our overall national strength. However, in some of the poor in rur...
The owner of a bookstore went to the wholesale market to buy a certain kind of book. The first purchase cost 100 yuan, and the book price was 2.8 yuan, and sold out quickly. Because the book sold well, the second time he bought the book, he found that the wholesale price of each book was 0.5 yuan higher than that of the first time, and 250 yuan was spent. The number of books purchased was twice as much as that of the second time. When four fifths of the books were sold out, the remaining books were sold at 50% discount, Ask the boss if he will lose money or make money when he sells books for the second time. How much will he lose or earn?
Set X for the first time and 2x for the second
100/x+1/2=250/2x
The solution is x = 50
It is proved that x = 50 is the solution of the original equation
2X = 2 * 50 = 100
【100*4/5*2.8+100*(1-4/5)*2.8*50％】-250
=252-250
=2 yuan
A: the second time I sold books, I made 2 yuan
. Wang s
The owner of a bookstore went to the wholesale market to buy a certain kind of book. The first time he bought the book, he spent 100 yuan and sold it at 2.8 yuan The owner of a bookstore went to the wholesale market to buy a certain kind of book. The first time he bought the book, he used 100 yuan, and the price was 2.8 yuan. The book sold out quickly. Because the book sold well, the wholesale price of each book was 0.5 yuan higher than that of the first time, 150 yuan was spent, and the number of books purchased was 10 more than that of the first time, I search on Baidu are all four fifths, this problem has been changed), and then sell the remaining books with a 50% discount of the price
The cost of setting up the book is x yuan / copy. After spending 100 yuan, I bought 100 / X copies
For the second time, I bought 100 / x + 10 copies of X + 0.5 yuan per copy
（X+0.5）（100/X+10）=150
The equation is simplified and calculated by formula method
So x = 2.5 or 2
So 100 yuan bought 40 or 50 copies
Both answers agree with the question
The second time I bought 50 copies, 3 yuan each, or 60 copies, 2.5 yuan each
A 50% discount is 1.4 a copy. If it is sold out, it must be a loss
50 is worth 80
Sixty is sixty-six
The owner of a bookstore went to the wholesale market to buy a certain kind of book. The first time he bought the book, he used 100 yuan. The price of the book was 2.8 yuan. He sold it quickly When buying books for the second time, the wholesale price of each book has been 0.5 yuan higher than that of the first time, and 150 yuan has been spent, and the number of books purchased is 10 more than that of the first time. When 5 / 4 of these books are sold out, the remaining books are sold out with a 50% discount of the price, and the wholesale price of each book for the first and second time is calculated
Solution: let the first time enter x books. The second time we enter 2x copies. 100 / x + 1 / 2 = 250 / 2x, we get x = 50. After testing, x = 50 is the solution of the original equation
The owner of a bookstore went to the wholesale market to buy some books. He bought several books with 100 yuan for the first time and sold them out quickly. Because the book sold well, the wholesale price of each book was 0.5 yuan higher than that of the first time, and 150 yuan was used up. The number of books purchased was 10 more than that of the first time Question: first, second, how much is the wholesale price of each book?
If the wholesale price of the first book is x yuan, then the wholesale price of the second book is (x + 0.5) yuan
100/X +10=150/X+0.5
Both answers will be correct
Wang s
The owner of a bookstore went to the book wholesale market to buy some books. For the first time, he bought several books with 1200 yuan, sold them at 7 yuan, and soon sold out. In the second purchase, the wholesale price of each book increased by 20% compared with the first time. He bought 10 more books with 1500 yuan than the first time. When he sold 200 copies according to the price, it was unsalable, I want to ask the boss whether he lost money or made money (regardless of other factors) if he lost money, how much he lost and how much he made if he made money Find fractional solution, with test!
If the wholesale price is x yuan, then the first purchase price is 1200 / X copies. If the second wholesale price is (1 + 20%) x, then the second purchase price is 1500 / (1 + 20%) x books (1 + 20%) x + 10 = 1500 / (1 + 20%) x = 5, then the first profit is 1200 / 5 times (7-5) = 480, the second wholesale price (1 + 20%) x = 6, the second time
Xinhua bookstore sells 1560 yuan of class a books in one day, and its profit margin is 25%. Then the cost of selling a kind of books in this day is? Yuan
If the cost of selling a book is x yuan, then
（1+25%）x=1560
x=1248
A: then the cost of selling a kind of books is 1248 yuan
Or:
1560 / (1 + 25%) = 1248 yuan
Bookstores sell a total of 1560 yuan a day, with a profit margin of 25 "%. What is the total cost of selling a kind of books on this day
Profit margin (cost profit rate) = profit × cost × 100%
Unit 1 is the cost, which is 100%, i.e. 1. Unit 1 is unknown. Use division. Part of the quantity is divided by the corresponding percentage to unit 1. Then, 1560 × (1 + 25%) is used
=1560÷125%
=1560 × 100th of 125th
=1248 yuan
A: the total cost of selling a kind of books on this day is 1248 yuan
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