There is no math ah there are other better thanks 5

Could you please add a question?

Summary. Hello, what math problems do you have? Can you tell me about it?

Hello, what math problems do you have? Can you tell me about it?

That's how this came to be, can you tell me the detailed process?

It's better to take a piece of paper and write it down, thank you very much.

What are the other conditions, such as whether the series is equal difference or proportional?

You can tell me how this formula became, and give me a detailed process.

Take a look. Hope it helps.

Isn't sn-sn-1 equal to a1?

SN is A1+A2+....an, sn-1 is equal to a1 + a2 + ......An-1: Subtract both to AN

OK understanding is not in place.

Hello, has the question of the foundation been clearly answered for you? If you have any new confusion, please feel free to find me again, and I will answer it for you as soon as possible. I wish you all the best!

If there are x number of women who participate in the drama, there are x-30 men who participate in the key quiet drama.

There are 2x women who participate in singing and dancing, and 2x (1-35%) men who participate in singing and dancing 35%=14x 13 people.

According to the title, x+2x=2 [(x-30)+14x 13]3x=2x-60+28x 13

15x/13=60

x = 52 females 3x = 156, males 156 2 = 78 total 156 + 78 = 234 choose a

There are twice as many women as men, in other words, divisible by 3, so that options can also be ruled out.

And then I won't either.

Intelligence questions, IQ test. How many squares are there?

16 + 9 + 4 + 5 + 5 + 1 = 40 (pcs).

Quiz everyone: This is a math problem that can measure whether a person has business acumen. Master Wang is selling fish, a pound of fish at a price of 45 yuan, now a big sale at a loss, the customer bought a kilogram for 35 yuan, gave Master Wang 100 yuan fake money, Master Wang has no change, so he asked a neighbor for 100 yuan.

Afterwards, the neighbor found out that the money was fake in the process of depositing money, and it was confiscated by the bank, and Master Wang lost 100 yuan to the neighbor, how much did Master Wang lose in total?

Note: The difference between catties and kilograms.

A total loss of 100 + (45 2-35) = 100 + 55 = 155 yuan.

Looking for answers ?

A basket of eggs: Take them one by one, just finished.

2 2 take, 1 left.

Take 3 of 3 and take it just over.

4 4 take, 1 left.

5 5 take, 1 left.

6 6 take, 3 left.

Take 7 7 and take it just right.

8 8 take, 1 left.

Take 9 of 9 and take it just over.

Q: How many eggs are in the basket?

1 1 is just finished, 3 3 is just finished, 7 7 is just finished, 9 9 is just finished, and the number of eggs in the box is a multiple of 4*9=63.

2 2 take 1 left, 5 5 take 1 left, and the single digit is 1.

So find 37 ...... from the following numbers

So the minimum number is 441.

The title is incorrect: it should be the high mountain flowing water by the water is equal to the water flowing and the mountain is high. The answer is 1089 9 9801.

Error reason: The water cannot be 1, 5, 6, and the numbers are repeated.

Water cannot be 7, 8, 9, (the front height is 1, the minimum is 1, and it adds up to 5 digits) Water cannot be 2, 3, 4, ?4?2 (five digits);?9?3；?6?4 (the two streams are not the same).