There are 150 things, all of which are 5 yuan, how much is each, how to calculate it?

Start with 5 150 cents, from which the ** of the coin can be cents, thus listing the equation:

Let 1 point have x, 2 points have y, then 5 points have (150-x-y), according to the title, get.

x+2y+5(150-x-y)=500 x=(150-x-y-y) or y=(150-x-x-y).

The solution is 4x+3y=250 and 2x+2y=150

4x+3y=250,2x+2y=150 ④∵4x+3y=250

4x+3y-2x+2y=250-150 ∴8x+6y=500

2x+y=100 ∴8x+6y/5=100

2x+y=100, 8x+6y 5=100 When there are x in 1 point, 2x in 2 points, and (150-x-2x) in 5 points, 2x+y=8x+6y 5 x+4x+5(150-x-2x)=500

y=2x gives x=25

Then there are 25 for 1 point, 50 for 2 points, and 75 for 5 points.

Another possibility is that there are only 2 points and 5 points, so the equation is listed:

Let there be x points for 2 points, then there will be (150-x) points for 5 points, and according to the title, it will be obtained.

2x+5（150-x）=500

The solution is x=250 3 because the number of coins is an integer, so this method does not hold, therefore, there is only one possibility, then there are 25 points for 1 point, 50 points for 2 points, and 5 points.

There are 75 of them. This method can be omitted.

Hopefully, due to my temporary shortage of funds, I hope to be able to give me some gold coins, because I will only become a sophomore in the next semester, so the calculation is too troublesome, please forgive me.

Ah, isn't this 150 the same?

The same is 5 150 = 1 30

A box of 30 things costs 50 yuan, each dime. Algorithm:

Division algorithms. Computational properties.

1.Dividend.

Enlargement (contraction) n times, the divisor remains unchanged, and the quotient expands (shrinks) n times accordingly.

2.The divisor expands (shrinks) n times, and the dividend does not change, and the business investigation shrinks (expands) n times accordingly.

3.The nature of division: the divisor is divided by two divisors consecutively, which is equal to the product of the two divisors. Sometimes simple operations can be performed depending on the nature of division.

For example: 300 25 4 = 300 (25 4) = 300 100 = 3.

If you just calculate how much a piece is, it's easy, 11450 54=, this is a piece of item**, here you can also calculate how much is a catty, 54 * 35 = 1890, this is the total weight, 11450 1890 =, this is a catty**.

A total of 11,450 yuan was spent to buy 54 things, a piece of 35 kilograms, then the amount of money needed for a piece is.

11450 54 = yuan.

According to the title, it is known that a total of 11450 was spent to buy 54 things, therefore, it is necessary to find out how much a piece costs, and the detailed answer is as follows:

11450 54 = 212 (yuan).

I spent a total of 11,450 yuan to buy 54 things, a piece of 35 kilograms, and a piece of about 212 yuan.

Calculation: 11450 54 = yuan block.

Answer: It is equal to one yuan.

..If there are x pieces of yuan, then 5 yuan x + 5 pieces. By the title, 20x+5(x+5)=150. The solution is cautious imitation x=5, that is, 10 pieces of pure five yuan, 20 yuan 5 sheets. Response time: 2021-04-12, the latest wide trouser fiber.

How many yards is there for that 50 yuan? How do you calculate five dollars? Why is there a culture of repentance in 150 yuan? So how do you calculate? That is 150 yuan, which is multiplied by two, which is the positive number of this five-yuan ticket.

How many tickets are 150 yuan? How do you calculate five dollars? It means that 150 5 means that 150 contains several 50s.

Question How many combinations are there in three types of coins of 1 cent, 2 cents and 5 cents, combined into 1 dime? There are four kinds of coins, 1 cent, 2 cents, 5 cents, and 10 cents, and the number of each coin is unlimited. A person can go up the stairs at a time 1 letter nuclear burn, 2, or 3, ask this person to go up the nth floor of the stairs, how many ways to walk in total?

The question is different, but the essence of slippery is the same!

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Question There are three kinds of manuscript coins for 1 point Zheng Xian limb and 2 points and 5 points, which are combined into 1 dime, how many combinations are there? There are four kinds of coins, 1 cent, 2 cents, 5 cents, and 10 cents, and the number of each coin is unlimited. A person can go up the stairs 1, 2, or 3 at a time, ask this person to go up the steps of the n floors, how many ways are there in total?

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The unit price is yuan, the quantity is 500, and the total price is? Yuan. Here I can use a formula for the manuscripts: the total price of the single Liang Cong filial piety price Zheng Zhiliang. So the equation is: yuan).

One two pieces five, five hundred, is the yuan.

Solution: According to the topic:

500 blocks).

A: 500 pieces cost 1250 yuan.

250 is a multiple of 15, and 1 dollar is 15, that is, a dollar.