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This new year's Day party host our class has me, I do not know what to say! If five people have a good answer, I will increase the reward
Prologue the new year's bell is about to ring, and the wheel of time has left a deep impression. With the warm sunshine in winter and full of joy, new year's day of 2009 comes as promised. New Year's Day shortens the distance of our growth. New Year's day reddenes our happy life. NEW year's day lets us intercept the four seasons
The students of class 6 (3) of our school use the class fee of 66 yuan, and buy three kinds of prizes (a, B and C) with the unit price of 3 yuan, 2 yuan and 1 yuan to reward the students participating in the school art festival
It is known that the number of type B prizes is 2 more than that of type a prizes, while the number of type a prizes is not less than 10, and the cost of type a prizes is not more than half of the total. If the 66 yuan class fee is just used up, there are several schemes? How many pieces for each?
There are two schemes: 1. 10 pieces for a, 12 pieces for B and 12 pieces for C;
2. A 11, B 13, C 7
How many milliliters of water should an adult drink a day, equivalent to how many bottles of mineral water
4 and a half bottles of mineral water (450ml each)
How many grams is 500 ml water
Under standard conditions, that is, pure water at 4 ℃, 500 ml is 500 g
How many milliliters of water is 2kg?
2 kg equals 2 kg
The density of water is 1000 kg / m3
So two kilograms is 2000 milliliters of water
How many milliliters of mineral water is 30cmku mineral water
It also depends on the area of the container for mineral water, only the height is not enough!
How many bottles of mineral water is 300 ml?
Different mineral water specifications are different·
Master Kang is 550ml, 300ml is about half a bottle···
How many liters is 60 bottles of 500ml mineral water equal to
60 * 500 = 30000 ml
30000 ml = 30 liters
A tour group rents a car to go out, and the car rental fee is borne by the passengers on average. As a result, the number of passengers is exactly equal to the amount of yuan that each person should pay for the car. Later, the number of passengers is reduced by 6, so that the car rental fee per person is increased by 12 yuan______ Yuan
Suppose there are x passengers, according to the equation, we get: X × x = (X-6) × (x + 12) x2 = x2 + 6x-72, the solution is: x = 1212 × 12 = 144 (yuan). Answer: the rental fee of this car is 144 yuan. So the answer is: 144
A tour group rents a car, and the fare is shared equally by the passengers. As a result, the number of passengers is the same as the fare payable by each person. Later, 12 people came, so that each person would pay 8 yuan less. How much is the fare of the car
Suppose the car rental fee is x yuan
x*x=(x-8)*(x+12)
The solution is x = 24 (yuan)
The fare of this car is 24 * 24 = 576 yuan
RELATED INFORMATIONS
- 1. The 59 students in the class went to the park and rented 17 bicycles for 3 people and 4 people. The class was just full. How many bicycles for 3 people and 4 people?
- 2. Go to the park with friends To be simple, I use it for speech in my class. I just say what I played in the morning and what I played in the afternoon
- 3. There is a pile of chessmen. After they are divided into five equal parts, there are four pieces left. After three of them are divided into five equal parts, there are three pieces left. After two of them are divided into five equal parts, there are two pieces left. How many pieces are there at least? I always think that the last one should be greater than 2, so it's 184. Now it seems that no more than 2 is also in line with the meaning of the question, should be right, is 59. Liuking 123 uses arithmetic, which should be the correct answer.
- 4. A travel agency organized two tour groups A and B with a total of 80 people to travel to Lushan Mountain and Wutai Mountain respectively. It is known that the number of group A is more than two times that of group B, with 5 people B what are the numbers of the two tour groups?
- 5. A and B go from a to B at the same time. When a goes to B, they immediately return and meet B 32 kilometers away. The speed ratio of a and B is 5:4. How many kilometers did B travel when they met?
- 6. Callia and Xuanxuan each have some cartoon stickers. If callia gives Xuanxuan 25 stickers, Xuanxuan's stickers will be three times as much as callia's. If Xuanxuan gives callia some stickers, callia's stickers will be six times as much as Xuanxuan's. how many stickers can Xuanxuan have at least?
- 7. By bus, 40% of the total number of passengers get off the bus, and another 9 people come up. This is one twentieth more passengers than before. How many people are there in the bus? The clothing store buys 100 sets of sportswear, each of which costs 200 yuan, and sells them at a price of 50% of the expected profit. When 60% of the sportswear is sold, the rest of the sportswear is sold at a discount. After 100 sets of sportswear are sold out, the expected profit is reduced by 18%. How much discount is the clothing sold
- 8. The opposite number of A-B is () A. a+bB. -（a+b）C. b-aD. -a-b
- 9. Lele supermarket carries out promotional activities, drinks "buy ten get one free". A bottle of coke is 6 yuan, Xiaohong buy 45 bottles of coke, how much do you have to pay?
- 10. A beverage store is engaged in sales promotion, so you can get one free for four drinks. The current price of a bottle of coke is 0.6 yuan lower than the original price. How much is the current price of this bottle of coke,
- 11. There are three rooms and double rooms in the room department of a hotel
- 12. There are three rooms and double rooms in a hotel. The charging standard is as follows: yuan / room · day, 210 for three rooms and 180 for double rooms 【1】 If three of the seven individual guests live in a three person ordinary room and four in a double room, and each room is just full, how much is the total accommodation fee for these seven people per day? 【2】 In order to attract tourists, a 50% discount for group stay is implemented. During the period of a 50 person travel discount, the group will stay in the four hotels and live in some ordinary rooms for three people and ordinary rooms for two people. If each room is just full and a total cost of 2070 yuan is spent on one day, how many ordinary rooms for three people and ordinary rooms for two people will the group live in? Equation of one degree with one variable!
- 13. There are three rooms and double rooms in the room department of the hotel. The charge data is shown in the table below. In order to attract tourists, 50% discount for group stay is implemented. A 50 person hotel is available During the discount period, the tour group stayed in the hotel and stayed in some three person ordinary rooms and two person ordinary rooms. If each room is just full and the total cost of accommodation is 1510 yuan per day, how many three person ordinary rooms and two person ordinary rooms did the tour group stay in? The first is the ordinary version, and the second is the luxury version
- 14. A hotel room department has 3 rooms, double room, charge
- 15. A tourist group stays in a hotel. If there are five people in each room, there are four people who have no place to live. If there are six people in each room, there is only one room with four people and three rooms vacant Find the number of rooms and the number of the tour group. Use the quadratic equation to do the application solution
- 16. How many rooms are there in a tourist group? How many people are there in a tourist group?
- 17. There are 35 male tourists, a quarter more than female tourists. How many female tourists are there
- 18. There are 72 more boys than 1 / 3 of the total number and 20 less girls than 3 / 5 of the total number
- 19. Class 5 (1) and class 5 (2) go to the park. The park ticket is 5 yuan per person. The group ticket for more than 30 people (including 30 people) is 3 yuan per person. Class 5 (1) and class 5 (2) are less than 30 people, and the number of students is equal. So the two classes together buy group tickets, which saves 100 yuan How many people are there in each class? 2. How much did the ticket cost?
- 20. The ticket price for group purchase of park tickets is as follows: 13 yuan for 50 people, 11 yuan for 51 ~ 100 people, 9 yuan for more than 100 people. There are two tour groups A and B. It is known that the number of group A is less than 50, and the number of group B is no more than 100. If the tickets are purchased separately, the total price for the two groups is 1392 yuan. If they are purchased together as a group, the total price is 1080 yuan. (1) please judge whether the number of group B is less than 50;