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Everybody didn't come up with nine dollars. Because 25 yuan was received and 5 yuan was returned, then it was equivalent to everyone out.

10-5 3) yuan. In this way, you calculate that the (10-5 3) yuan paid by each person is multiplied by 3 people, plus the 2 yuan left by the waiter, plus the 1 yuan returned by each person, a total of 3 yuan, which is exactly equal to 30 yuan.

The above algorithm, each person returns 1 yuan, which is true, but it does not mean that each person paid 9 yuan to live in the hotel, and there was 2 yuan These three people did not come out, but were deducted by the waiter. So the above formula can also be written like this. 9 yuan-2 3 yuan is the money for each person, and then multiply it by 3, which is the total amount of money paid by three people, which is 25 yuan, I don't know if I understand?

The 9 yuan per person has included the 2 yuan secretly left by the waiter, and the three people actually paid a total of 9 * 3 = 27 yuan, and returned 3 yuan, which is the amount of money taken out by the three people at the beginning. 9*3+3=30 yuan.

3 x 9 = 27" should not be "plus $2 deducted by the waiter".

It should be minus $2.

The boss originally offered 25 yuan, but because the waiter "left 2 yuan secretly", it was equivalent to 2 yuan more than the accommodation fee actually paid by the three people, which was 27 yuan.

So 3 x 9 = 27 plus the $2 deducted by the waiter equals $29.

To change it to minus here is equivalent to paying 25 yuan.

Because one person pays 9 dollars, and the other 2 people pay 8 dollars.

If you add 2 pieces, they pay 29, and if they use subtraction, they pay 25, so they don't use addition, but subtraction.

The problem is cloudy.

The 2 yuan deducted by the waiter is deducted from the money paid by the three people, that is to say, it is deducted from 3 x 9 = 27 yuan, so 2 yuan is included in 27 yuan, and the three people have 1 yuan in each hand to add up to 3 yuan, plus 27 yuan is exactly 30 yuan.

And it doesn't make sense to add $27 to $2.

The fault is that he only received 25 yuan, because they gave a total of 30 yuan, 30-25 = 5 yuan, which cannot be divisible by 3 If the hand is 24 yuan, it is 8 yuan for one person, 3 * 8 = 24 yuan + 6 yuan = 30 yuan, as long as the money he changes can be divisible by 3, this account is not wrong.

Summary. Hello dear, I will describe the entire billing situation hard, and I will help you calculate it here.

Hello dear, I will describe the entire billing situation hard, and I will help you calculate it here.

How much did you spend on the pro-cost?

I invested 2.2 million, paid 4.23 million for materials and rent, and deducted 1.8 million = 2.42 million for sale.

You want to know your profits, right?

Yes. Hello to keep you waiting, can you estimate how much the remaining unsold will sell.

For example, if you have a capital of 2 million, then rent 4 million, and then sell goods for 8 million, it is equivalent to you making 2 million.

This is such a calculation method, if there are labor and other costs, then subtract them.

Do you have to figure out how much of the rest of the goods you can sell?

That's right, because you need to know how much you're going to sell for the two million you invested, minus your investment.

That's what you actually make a profit.

Or how much is the capital of 1.8 million, which can also get an approximate profit.

It's the 1.8 million you sold, how much does it cost.

Good. Well, if you don't understand anything, feel free to consult, and here will help you calculate as much as possible.

2,040,000 (1+15 3%)=1406896 yuan.

The normal algorithm is the principal + interest rate number of years = the final result, and we know that the final number is calculated in reverse.

The division of the estate refers to the distribution of the estate according to the distribution principle prescribed by law or the amount specified in the will when two or more heirs jointly inherit the estate after the commencement of inheritance. According to the provisions of the Inheritance Law of the People's Republic of China, the division of inheritance shall first implement the spirit of mutual understanding, mutual concession, harmony and unity, and shall be handled by the parties through consultation. The following provisions shall be followed during the consultation process:

1) The inheritance share of the heirs in the same order shall generally be equal. The inheritance shall be distributed equally by the heirs in the event that their obligations to the deceased and their respective economic conditions are roughly the same. If the heirs agree by agreement, it can also be unequal.

2) Heirs who have special difficulties in life and lack the ability to work shall be taken care of. (3) Heirs who have fulfilled their main obligation to support the deceased or who live with the decedent may receive more than one share of the estate in the distribution of the estate. Heirs who have the ability and capacity to support shall not receive a share or a small share when they do not fulfill their obligation to support.

4) For those who are not heirs but rely on the support of the deceased and lack the ability to work and have no livelihood, or those who are not heirs but support the decedent more, they can also be given an appropriate inheritance. (5) It should be based on the spirit of mutual understanding, mutual accommodation, and unity. When the heirs fail to reach a successful negotiation, the people's mediation committee may mediate, or the people's court may make a determination.

65 gold coins a week.

17 weeks: 17*65=1105

There are still 14 left, and it can be completed in a maximum of 3 days when you sign in.

17*7+3=122 days.

It takes about another 122 days to reach 2,000 gold coins.

17 weeks + 3 days. A total of 122 days.

One cycle per week, a total of 65 gold coins. A total of 1,105 were received in 17 weeks, plus the original 881 for a total of 1,986. You have to get another 3 days, for a total of 122 days.

90 divided by 2 plus 30 divided by 2 equals 60, so your friend should have to pay you back 90-60 = 30 yuan.

The total price of your house is 92*4500=10,000.

Your actual payment amount is: 145,000 + 1,750 * 12 * 15 = 460,000 Your loan amount is: 269,000

The interest is: 10,000.

The interest per month is 255 and the annual interest is 3066