What is the least common multiple of 64 and 69

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• 1. As shown in Figure 1, on the number axis, the absolute value of the number represented by point B is 1 times larger than that represented by point a (B is a little more to the left of point 0, and a is a little less to the right of point 0) If the two points of B are 19 units apart, then the number represented by point a is (), and the number represented by point B is ()
• 2. What is the least common multiple of 23, 17 and 29?
• 3. As shown in the figure, if the digit a corresponding to point a on the number axis, the number corresponding to point B on the number axis is B, and a and B satisfy | a + 2 | plus (B-1) = 0 (1) Finding the length of line ab (2) Point C is the digit x corresponding to the number axis, and X is the solution of the equation 2x-1 = 1 / 2x plus 2. Is there a point P on the number axis, such that PA plus Pb = PC? If it exists, find out the number corresponding to P, but it does not exist. Please explain the reason (3) Under the conditions of (1) (2), point a, B and C begin to move on the number axis. If point a moves to the left at the speed of one unit length per second, and point B and point C move to the right at the speed of four unit lengths per second and nine unit lengths per second respectively, suppose that after T seconds, the distance between point B and point C is expressed as BC, and the distance between point a and point B is ab, Please explain the reason, if not, find out the value! I want it today!
• 4. What is the least common multiple of 22 and 23? Also explain the calculation process! Now we use short division to find the least common multiple
• 5. If the two square roots of a number are 10 units apart on the axis, then the number is zero
• 6. What is the least common multiple of 2 and 3
• 7. The least common multiple of 31 and 10
• 8. 1. Point P is 7 unit lengths away from the origin on the number axis, then the real number represented by point P is 2. If the square root of a number is ± 2, then the square of the number is
• 9. 13 and 31 least common multiple
• 10. What is the number of unit length on the number axis which is the arithmetic square root of 6 from the point of number 2?
• 11. Our hotel property area of 1054.5 square meters, a total of five floors, with a total area of 5272.5 square meters. How should we pay for land use? First class land
• 12. What is the least common multiple of 9 and 10?
• 13. How many square meters is the total area of a room 45 meters? I have no culture, please ask for advice
• 14. The least common multiple of 9 and 4 How do you calculate that?
• 15. Do you know how to calculate 20! With calculator
• 16. The least common multiple of 9 and 16
• 17. [math problem] the price of a includes 30% of the profit, and the price of commodity B includes 40% of the profit [math problem] the price of a includes 30% profit, and the price of commodity B includes 40% profit. The total price of the two commodities is 470 yuan. The price of a is 50 yuan more than that of B. what's the cost of a?
• 18. What is the least common multiple of 9 and 19?
• 19. The price of commodity a includes 20% profit, and that of commodity B includes 40% profit. The sum of the price of commodity a and commodity B is 480 yuan, The price of a is 60 yuan higher than that of B. how much is the cost of a and B
• 20. There are two numbers that are coprime numbers and composite numbers. Their least common multiple is 90. These two numbers are () A. 9 and 10B. 2 and 45C. 6 and 15d. 5 and 18