Where do you use percentages in your life?

Every day in the weather forecast program on TV, the weather conditions and precipitation probability of the same night and tomorrow during the day will be reported, reminding everyone to prepare in advance, just like the probability of precipitation at night today is 20%, and there will be five or six strong winds during the day tomorrow, and the probability of precipitation is 10%.

With the rapid development of technology, every middle-aged person is now equipped with a mobile phone with a variety of styles. Glenn, psychologist at Royal College, University of London. Wilson's research proves:

Always looking down at text messages, will lead to low work efficiency, the staff's brain response ability will also slow down, people who often read text messages IQ dropped by 10%, in the form of a percentage once again proved that although mobile phones provide convenience for people, but are very harmful to human health.

This is what I found in my life about percentages. I believe that as long as you observe carefully, you will also find that percentages are everywhere in life.

China is the world's largest producer of energy-saving lamps, but 80% of the products are exported, and the domestic use is seriously low.

In 2001, the monthly salary of the college students who have signed a contract is less than 1,500 yuan.

An online survey shows that some netizens have not read famous books in recent years. In addition, of netizens have not read a famous book in the past ten years, and some netizens said that they have never read a famous book.

Not only mathematics, but also math-induced thinking!

**There are places where they can be used.

The main applications of percentages in life are as follows:

2. The nutrient reference value in the nutrient facts table on the food packaging box does not indicate the percentage of the substance in the food, but the proportion of the amount of the substance in the food to the per capita normal daily intake, which also explains why the sum of the percentages in the nutrition facts table is often not equal to 100%.

For example, assuming that a normal person should consume an average of 60 grams of fat per day, then a food containing 6 grams of fat per 100 grams should be marked with 10% instead of 6% in the nutrition facts list.

3. The survival rate, germination rate, attendance rate, oil yield, score rate, etc. indicate that the percentage of individuals in the total will not exceed 100% (maximum 100%)

4. Percentages have different meanings in different situations. For example, the sentence "The probability of precipitation tonight is 20%" indicates that the probability of rain (snow) tonight is 20%, but it does not mean that it will rain (snow) 20% of the time tonight.

5. Use it when it is discounted, such as a 20% price reduction for a piece of clothing.

Percentages in life:1. The germination rate of wheat is 70%.

2. The volume of oxygen in the air accounts for about 20%.

3. In this sweater, wool accounts for 85% and chemical fiber accounts for 15%.

4. China's territory accounts for about 5% of the world's land area (except Antarctica), and the world's oceans account for 71% of the earth's surface area.

6. Of the world's total water reserves, 97% is seawater.

7. The Yangtze River is shorter than the Amazon River.

Percentages are special fractions with a denominator of 100, and their numerators are not integers. A percentage indicates the percentage that one number is a percentage of another, and indicates a ratio without the unit name.

Percentage is a way of expressing a proportion, ratio, or fractional value, such as 82% for eighty-two percent, or 82 100. Percent and fold represent tenths, for example, "seventy percent" and "seven folds" represent 70 100 or 70% or.

A percentage indicates how many percent of a number is another number, also called a percentage or percentage. Percentages are usually not written in the form of fractions, but are represented by the symbol " " percent sign).

Percentages in life:

1. The alcohol content of Luzhou Laojiao is 52%, the alcohol content of Yanghe Daqu is 38%, and the alcohol content of Prince Beer.

2. There is such a message about the percentage on the clothes: face cloth: 100% cotton, lining 100% polyester, filling 100% polyester.

3. Always looking down at text messages will lead to low work efficiency, and the brain response ability of staff will also slow down, and the IQ of people who often read text messages will drop by 10%.

4. Probability: The probability of a random event can be expressed as a percentage. For example, if you toss a coin, there is a 50% probability that the result will be heads and tails.

Probability is a numerical measure of the likelihood of a chance event occurring, and can be expressed as a percentage of the proportion of the event to the total number of events.

5. Tax rate: The tax rate is the proportion or amount of levy on the taxable object. The tax rate is a measure of the tax amount, and it is also an important indicator to measure the weight of the tax burden. The current tax rates in China mainly include proportional tax rate, progressive tax rate for excess, progressive tax rate for excess rate, and fixed tax rate.

Percentages in the application of life:

Spot check the pass rate of products, the correct rate of doing questions, the alcohol content of wine, the interest rate and tax rate in the bank, the utilization rate of wastewater, the attendance rate of employees, the germination rate of various seeds, the survival rate, germination rate, pass rate, salt content, tax rate, correct rate, error rate, survival rate, excellent rate, success rate and other ratios of various tree species.

For example, when the discount was introduced, it now accounted for a few percent of the original **; Every day in the weather forecast program on TV, the weather conditions and precipitation probability of the night and tomorrow during the day will be reported, for example, the probability of precipitation at night is 20%.

The correct rate of doing the questions, the pass rate of random inspection products, the attendance rate of employees, the utilization rate of wastewater, the survival rate of various flowers and trees, the error rate of doing the questions, the correct rate of doing the questions, and the precipitation rate of tomorrow.

There are many percentages in life. For example, the alcohol concentration of drinking friends is 35 degrees, and some drinks are 53 degrees.

That, of course, is found in many places.

Find out what percentage of an object makes up the whole.

Find the attainment rate in a group of people, pass rate, and so on.

As well as interest rates on banks, GDP growth rates, and so on.

are all important places where percentages appear.

Label, wine concentration, correctness, failure rate, unemployment rate, instructions, content.