A sixth grade arithmetic problem A city holds a cycling race around the city. The fastest person meets the slowest person 35 minutes after starting. It is known that the slowest person's speed is 5 / 7 of the fastest person. A week around the city is 6 kilometers. What's the speed of each person?

RELATED INFORMATIONS

• 1. Recursive equation simple calculation, application problem, equation problem 27.42-（5.7+4.42） 16.5-0.25×5-7.25 An iron wire can be enclosed into a square with an area of 49 square centimeters. If it is enclosed into a rectangle with a width of 4 centimeters, calculate the area of the rectangle 3×（x-7）=0.6 Plus a practical problem. From place B to place a, the price of a plane is four times that of a train, and the price of a plane ticket is 1050 yuan more expensive than that of a train ticket. How much is the price of a plane ticket and a train ticket? (solution of a series of equations) Ask to answer completely, add unit, see clearly number sign.
• 2. There are four continuous natural numbers, their product is 11880, find these four numbers
• 3. The average of three consecutive natural numbers is 77. What are the three numbers? Such as the title
• 4. The reciprocal of the sum of three consecutive natural numbers is (1 / 6). What is the average of the three consecutive natural numbers
• 5. There are four consecutive natural numbers, and the sum of their reciprocal is 77 / 60. What are these natural numbers? 60 is their least common multiple
• 6. The reciprocal sum of several continuous natural numbers is 47 / 60. What are these natural numbers?
• 7. Which four natural numbers add up to 34 / 1995? Yes, there are 20 bonus points!
• 8. Nineteen eighties is the sum of the reciprocal of two different natural numbers
• 9. 19 / 28 of the difference between the reciprocal of two natural numbers is 19 / 93. What are the two natural numbers?
• 10. The sum of the reciprocal of two consecutive natural numbers is 11 / 30. What are the two natural numbers?
• 11. Several arithmetic problems (Grade 6) a.6/11*17-12*3/11 b.（1+1/2）*（1-1/2）*（1+1/3）*（1-1/3）*...*（1+1/9）*（1-1/9） c.1/27+505/2727+131313/272727+101010/272727 d. Known: 1 / 2-1 / 3 = 1 / 2 * 3, calculated: 1 / 2 * 3 + 1 / 3 * 4 + 1 / 4 * 5 + 1 / 5 * 6 +... + 1 / 19 * 20 Note: (/) stands for fractional line. For example: 505 / 2727 = 2727, numerator 505, (*) stands for multiplication 1 / 2-1 / 3 = 1 / 2 * 3, which means 1 / 2-1 / 3 = 1 / 2 * 3
• 12. The diameter of a circular flower bed in the park is 60 meters. What is the area of this flower bed? If a potted flower covers an area of about 1 / 10 square meters, how many thousands of potted flowers should be placed in this flowerbed? (the total number is ten thousand)
• 13. （-1/4）+5/6+2/3-1/2
• 14. Find the formula steps of this problem Take a 30 cm long rectangular iron sheet, cut out a square iron sheet with a side length of 5 cm on each of the four corners, and weld a long uncovered rectangular iron box with a volume of 1500 cubic cm. Find out the width of the original rectangular iron sheet
• 15. Primary school calculation problems, steps, problem-solving ideas, formula! 2 / 3kg of a certain pesticide diluted with water can be sprayed on 7 / 8 hectares of vegetable land. How many hectares of vegetable land can be sprayed on 1kg of such pesticide?
• 16. Two practical questions, please answer as soon as possible, thank you 1. A car can save 1.8 liters of gasoline by driving 200 kilometers. According to this calculation, how many liters of gasoline can be saved by driving 1500 kilometers? (using the proportional solution) (the process of solving the equation to be set) 2. The two passenger and freight cars leave each other from the two places. After meeting, the two cars continue to arrive at each other's terminal. They return immediately and meet again on the way. The two meeting places are 3000 meters apart. It is known that the speed of the freight car is two-thirds of the speed of the passenger car. How many meters is the distance between the two places
• 17. The heart rate of a person during exercise is usually related to his age. If a is used to indicate his age and B is used to indicate the maximum number of heart beats per minute that a person can bear during exercise, then B = 0.8 (220-a). (1) under normal circumstances, what is the maximum number of heart beats per minute that a 16-year-old teenager can bear during exercise? (2) When a person of 50 years old exercises, the frequency of 10 second heartbeat is 20 times. Is he in danger? Why?
• 18. Practical problems (with formula, 90% of the workers in an enterprise are shareholders, and 80% of the workers are "10000 yuan households". How many% of the "10000 yuan households" in this enterprise are shareholders at least?
• 19. Physics calculation, formula, formula, 1. On October 31, 2009, Chongming Bridge on the Yangtze River was officially opened to traffic. The total length of the bridge is about 25000m. A car with a weight of 2.0 times 10 and three times a kilogram takes 1250 seconds from the east to the west of the bridge, and the resistance is 2.0 times 10 and three times a kilogram, Question (1) what is the speed of the car from the east to the west of the bridge? (2) what is the work of the car's gravity? (3) what is the power of the car at this time? 2. The mass of object a is 50 kg. If the rope is pulled by a force F of 100 N, the object will move at a constant speed of 0.1 M / S. (excluding the weight of rope and pulley) (this pulley is a moving pulley) find: (1) the friction force on object a; (2) the length of the rope pulled in 2 minutes (assuming that the rope is long enough) (3) the work done by force F; (4) the power done by force F
• 20. The mass of the E-bike is 40kg, and the maximum speed is 25km / h. how far can the E-bike pass at the maximum speed of 45 minutes? How many meters per second is the speed? During the driving process, the contact area between each tire and the ground is 0.005 square. When a person with a weight of 40kg sits on the car, the ground pressure is?