Is the inflation rate the same as the devaluation rate? What's the relationship? How to convert inflation and currency devaluation?

Inflation means the relative devaluation of currency. Generally speaking, a certain amount of money can't buy as many things as it used to be. We need to understand that inflation exists for a long time. Generally, inflation between 2% and 3% is conducive to economic development, but if it exceeds 5%, it means that our social economy has

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1. Inflation rate depreciation rate appreciation rate Inflation rate = (current price - original price) / depreciation rate of current currency = (current price - original price) / current price formula meaning? Appreciation rate formula?
2. The calculation of inflation rate and currency depreciation rate Is the rate of inflation the same as the rate of currency depreciation Last time I saw two questions in the political reference book, which involved these two concepts, but the algorithm was very different The current price of goods is 10 yuan. (1) Q: what's the price when the inflation rate is 20% Calculation: 10x (1 + 20%) = 12 (yuan) (2) What is the price when the devaluation rate is 20%? Calculation: 10 divided by (1 + 20%) equals 12.5 yuan Which is the right one? Or is that the way it is calculated I just don't understand why some use multiplication and some use division
3. The issuing law of banknotes
4. What's the issuing rule of banknotes? Please be simple. Thank you
5. Emergency. What's the issuing rule of banknotes
6. Symbolic expressions for the following chemical reactions Carbonic acid is heated to carbon dioxide and water Copper reacts with oxygen to form copper oxide under heating condition Sodium chloride reacts with silver nitrate to form silver chloride and sodium nitrate
7. Use chemical symbols to write the symbolic expressions for the reactions of the following substances The wire burns in oxygen Heating potassium permanganate The ribbon burns in the air Charcoal burns in oxygen
8. Write the following expressions and symbols Preparation of oxygen by heating potassium permanganate Preparation of oxygen from hydrogen peroxide and manganese dioxide Preparation of oxygen by heating potassium chlorate and manganese dioxide Red phosphorus burns in the air The wire burns in oxygen Charcoal burns in the air
9. Write the chemical symbol expressions for the following reactions: Charcoal burns in oxygen—— Red phosphorus burns in air—— Sulfur burns in air—— 4 heating potassium permanganate to produce oxygen—— Heating mixture of potassium chlorate and manganese dioxide——
10. Write the chemical symbol expression of the following changes: (1) A dark red powder burns in oxygen and produces a lot of white smoke (2) A pale yellow powder burns in the air, giving off a faint pale blue flame (3) A silvery white metal burns in oxygen to give off a dazzling white light (4) A kind of black powder burns violently in oxygen and emits white light
11. Why China's inflation rate is higher than the United States, but RMB appreciation against the dollar When the RMB exchange rate rises, China still has a surplus in international payments
12. The earth in 100 years?
13. 10% annual reporting rate of 1 million. How much can we get in 40 years?
14. Suppose that the inflation rate will increase by an average of 6% in the next 30 years. Now 1 million yuan is deposited in the bank. How much is left in 30 years? Please write down the specific process,
15. Suppose that a city will build 1 million square meters of new housing in 2010, of which 250000 square meters are affordable housing. It is estimated that in several years of this year, the area of new housing in the city will increase by 5% on average compared with the previous year, and the area of affordable housing will increase by 100000 square meters every year. According to this plan, the year when the area of affordable housing built in that year exceeds half of that year's new housing area for the first time (already completed) will be calculated (1.052 = 1.1, 1.053 = 1.16, 1.054 = 1.22, 1.055 = 1.28)
16. Does the secondary vulcanization of NBR O-ring have shrinkage The outer diameter of NBR rectangular ring with an outer diameter of more than 400 is 0.3mm larger. Can the outer diameter of secondary vulcanization shrink
17. What is the density of NBR?
18. Derivation of the formula that the instantaneous velocity at the middle point of time is equal to the average velocity of the whole course Such as the title
19. Senior high school physics requires one to deduce the formula that the speed in the middle is equal to the average speed, Senior high school physics requires one to deduce that the average velocity is equal to the velocity in the middle of the time, and to deduce the formula of displacement,
20. 1. As long as the train is at a certain moment, the instantaneous speed must be 0. 2. What are the calculation formulas of instantaneous speed, average speed and speed? Because I preview it in advance, Don't be surprised to ask naive questions In addition, can you give a calculation of instantaneous velocity and average velocity?