There is a string of numbers 1, 7, 13, 19, 25 The 1000th number in this column is______ .
This sequence is an arithmetic sequence whose first term is 1 and tolerance is 6. The 1000th term is: 1 + (1000-1) × 6, = 1 + 999 × 6, = 1 + 5994, = 5995
RELATED INFORMATIONS
- 1. There is a string of numbers 1, 7, 13, 19, 25 The 1000th number in this column is______ .
- 2. 1 7 13 19 25 what is the 1000th number in this series of numbers
- 3. There is a string of numbers 1, 7, 13, 19, 25 The 1000th number in this column is______ .
- 4. 1 7 13 19 25…… What's the number 1000 On Mathematics
- 5. There is a column number: 1, 2, 5, 13 Starting from the second, three times of each number is exactly equal to the sum of the two numbers on its left and right sides, and find whether the number 2009 is odd or even
- 6. The sum of 15 consecutive odd numbers equals 2001. What is the largest odd number?
- 7. Give two column numbers: 1, 3, 5, 7, 9 , 2001 and 1, 6, 11, 16, 21 In 2001, the number of numbers appearing in the two books at the same time is A 199 B 200 C 201 D 202
- 8. There is a column of numbers: 2, 1, 1, 2. The rule is: from the second number, three times of each number is equal to the sum of the two numbers before and after it Can the 1000th number be divided by 2? How many times is the 1000th number divided by 3?
- 9. As shown in the figure below, arrange the number in a column according to the rule in the figure, then the number to be filled in the question mark is? What's the next number? Why?
- 10. The positive odd numbers 1,3,5,7 Arrange in five columns according to the format shown in the figure. What is the row and column of 2007? One column, two columns, three columns, four columns and five columns One line 1 3 5 7 Second line 15 13 11 9 Sanxing 17 19 21 23 Four lines 31 29 27 25 Five elements 33 35 37 39 … In which row and which column is 2009
- 11. What is the 100th number of the following data 1, 4, 7, 10, 13, 16, 19 How much is the 100th number? What I want is the law. There are letters to express what the law is. Otherwise, how did the number come from? Thank you first
- 12. The following data 1, 4, 7, 10, 13, 16, 19 ···············································································,
- 13. Find out the law of the following formula, and fill in the formula completely. 19 + 9x9 = 100
- 14. Write the formula according to the law, 3 1.. 5 7.. 7 13.. 9 19 So what's the 100th formula?
- 15. The formula arranged according to certain rules: 3 + 1,4 + 7,5 + 13,6 + 19 +. Then, what is the 100th formula?
- 16. From the beginning, add 4 and 5 in turn to get the following column of numbers 1, 5, 10, 14, 19, 23 and 28. The number closest to 2009 in this column is ()
- 17. 5,11,19,29 the next number according to the law
- 18. Observe the following group numbers - 1,1,5,11,19,29 1) Use an algebraic expression containing n to represent the nth number in this column. 2) is 2010 in this column? If yes, find out how many numbers are lower. If not, explain the reason
- 19. Observe the following two columns: 5, 9, 13, 17, 21, 25, 29, 33 4,7,10,13,16,19,22,25…… Which is the 15th pair of the same number among them
- 20. There are seven numbers in a row. The average of them is 30. The average of the first three numbers is 28. The average of the last five numbers is 33