84 21 ——+22 There is a 100 meter long iron wire. The first time we used 28 meters, which is 5.6 meters less than 4 / 7 of the second time. How many meters are left If a store sells a certain commodity at a 10% discount on the price, it can still make a profit of 20%. If the purchase price of the commodity is 19800 yuan, how much should the price be
100 - 28 - (28 + 5.6) / (4 / 7) = 13.2m
19800 × (1 + 20%) / (90%) = 26400 yuan
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- 1. The answer to the short passage of the vibrant sunflower One morning, the sunflower opened. Under a layer of round green leaves, three small flowers flashed out. One was red, one was yellow, and one was lavender. The blooming flowers were as gorgeous as rosy clouds, and as eye-catching as gems. In our quiet courtyard, they aroused a burst of surprise and admiration The three flowers are signals. The sound of the trumpet can't be stopped. The big flower, the small flower, the single petal, the double petal, the red, the yellow, the purple, the blue, the pink open together. A piece of green flannel turns into colorful brocade in a twinkling of an eye. Even those who don't love flowers can't stand the attraction of this beauty. When they are free, they gather around the flower bed to enjoy it From early summer to late autumn, the flowers are enduring. A piece of brocade has always kept bright and eye-catching colors. At first, we thought that the reason for this enduring is that sunflowers love the sun and can stand the test of the hot sun. Yes, it is, Only the sunflower has no reservation for the scorching sun. The hotter the sun is, the more gorgeous, enthusiastic and vigorous it is But after seeing more, I noticed that as a single sunflower, its life is very short. It blooms in the morning and withers in the evening, only one day. Because the flowering time is so short, this opportunity is very precious. Every day, there are a number of mature buds waiting to open. Before sunrise, it is wrapped tightly, and can't see the meaning of opening, but when you see the sun, Immediately open. Petals like waking up from a deep sleep. Slowly stretch out, open big, open round After that, it will enjoy the sunshine greedily and open to its heart's content. When the sunset sets, the petals will shrink again, and the flower will no longer open. The next day, it will be another batch of mature buds to welcome the sunrise How active and vivid the alternation between the new and the old is! Perhaps it is because of this that when the sunflowers bloom, they are so energetic and spare no effort. Although the life of the individual sunflowers is so short, they are always so brilliant and full of vitality on the whole The sunflowers are not depressed, and do not mean laziness. After they have finished their blooming, they will vacate the gap, give the best direction to the sun, give them new buds, and flash themselves together, gather the essence, and bring their offspring to life. They will continue to give life to the future. Until autumn frost kill, it has quietly scattered the seeds of silver seeds into the earth. In the second year, too many to count will be sprouting. The admirers of sunflower seem to have found a world here, a scientific, fair and friendly world. Like philosophers, they shout and sigh: the cause of sunflower is so prosperous! The Enlightenment of sunflower is undoubtedly beneficial 1. What are the characteristics of sunflower? Please summarize in simple language 2. "Although the life of individual sunflowers is so short, on the whole, they are always so brilliant and lively." why? 3. Where is the loveliness of the sunflower? 4. "The sunflower is in bloom. Under a layer of round green leaves, three little flowers flash out." "Oneself is shining aside, gathering the essence, giving birth to future generations, and extending life to the future." What's the difference between these two sentences? 5. The article uses a variety of rhetorical devices to describe sunflowers. Please give some examples to show their expressive functions 6. What is the "beneficial enlightenment" that sunflower has given you?
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- 6. Well, find some knowledge that should be reviewed in the sixth grade of primary school~
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- 10. A shopping mall used 360000 yuan to buy two kinds of goods a and B, and made a total profit of 60000 yuan after sales. The purchase price and selling price are as follows: ab purchase price (yuan / piece) 12001000, selling price (yuan / piece) 13801200 (1) how many pieces of goods a and B were purchased by the shopping mall; (2) the shopping mall bought two kinds of goods a and B at the original purchase price for the second time. The number of pieces of goods B was the same, while the number of pieces of goods a was the first If the two commodities are sold at a discount, and the profit from the second operation is no less than 81600 yuan, how much is the lowest price of B commodity?
- 11. 84 23 The following is a statistical table of six grades in a primary school. Please find out the number of students in Grade 1 and grade 2 according to the data in the table 8 4 88 92 91 89 90 eight
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