An inequality problem, to process! If there is a two digit number, the number on the ten digit is 2 larger than that on the single digit, and the two digits are between 50 and 70, what are the two digits? What are the ten digit and the single digit?
There is a two digit number. The number on the tenth digit is 2 larger than that on the single digit, and the two digits are between 50 and 70,
So these two digits are 53 or 64
Tens and ones are 5,3 or 6,4, respectively
RELATED INFORMATIONS
- 1. a> 0, b > 0, then the minimum value of (a + B + 4) / (a ^ 0.5 + B ^ 0.5) is__________ ? Don't tell me to bring it in directly with special value method,
- 2. Inequality, x²-(3+a)x+3a>0
- 3. 3 (x + 2) is greater than or equal to x + 4 (x-1) divided by two is less than 1
- 4. Junior one inequality problem to process, thank you for the urgent need to answer We know the equations x + y = 2m + 7 about X and y The solution of {is a positive number x-y=4m-3 (1) (2) simplify the absolute value of 3M + 2 minus the absolute value of m-5
- 5. How to solve these inequalities 1. |ax+3|0 3. (x-1)^2(x+2) ----------------0, (a belongs to R) Thank you!
- 6. Ask the master to solve the following inequality problem, remember that I am a freshman in high school 2x+3/x+2-1 /After that are molecules
- 7. Two inequality problems 1. Real numbers x and y satisfy the inequality X-Y ≥ 0 and Y ≥ 0 and 2x-y-2 ≥ 0 Find the value range of W = Y-1 / x + 1 2. Sequence 3 / 2, 9 / 4, 25 / 8, 65 / 16161 / 32 N*1/2^n Finding the sum of the first n terms
- 8. How to solve the univariate quadratic inequality of senior one? 1. (x-1) (the square of x-3x + 2)
- 9. The problem of solving quadratic inequality of one variable If the domain of kx2-6kx + (K + 8) under y = root is r, then the value range of K is r_____ [Note: 2 in kx2 is square, need to explain in detail]
- 10. Quadratic inequality of one variable in high order 1. Find the solution set of the following inequality (1) 4x-4x > 15 (2) 13-4x > 0 (3) X-3x-10 > 0 (4) x (9-x) > 0 2. Find the domain of the following functions (1) Y = root x-4x + 9 (2) y = root - 2x + 12x-18 3. If there are two unequal real roots of the hospital quadratic equation x - (M + 1) x-m = 0 about X, find the value range of M 4. Given the set a = {x | x-160}, find a U B
- 11. If the inequality system x + 5 > 4x − 1x > m − 2 about X has five integer solutions, then the value range of M is______ .
- 12. On quadratic inequalities of one variable Given that the square of equation x + 2mx + 2-m = 0 has two real roots with the same sign but not equal, what is the value range of real number m
- 13. Quadratic inequality of one variable in junior high school mathematics What is the solution of 2x ^ 2 + 3 > 5?
- 14. A problem of filling in the blanks of inequality in elementary 2 To write ideas and steps, read after additional It is known that the system of equations 3x + y = K + 1, x + 3Y = 3, if 2
- 15. In the plane rectangular coordinate system, the coordinates of points a, B and C are (0,1), (4,2), (2,6) respectively. If P (x, y) is a point on the area (including boundary) enclosed by △ ABC, then when the maximum value of ω = XY is taken, the coordinates of point P are______ .
- 16. Let x > 0, Y > 0 and X + 2Y = 1, find the minimum value of 1x + 1y___ .
- 17. Application of basic inequality A city plans to build a street garden. The area of the central flower bed is a, and there are paths with width of a and B around it. Question: how to design to minimize the area of the street garden?
- 18. A mathematical problem of filling in the blanks (basic inequality and its application) If x < 0, then x + 1 / X - 2 It's x + 1 / X () - 2
- 19. Mathematical inequality of senior one A=(x l l2x-4l
- 20. 1: What is the solution set of inequality x x ≥ x? 2: If the solution set of inequality ax square + BX + 2 > 0 is (- 1 / 2, 1 / 3), then the value of a + B is? 3: Let u = R, a = {Xmx square + 8mx + 21 > 0} complement a = empty set, then the value range of M is? 4: When there is exactly one solution in inequality 2 ≤ x square + PX + 10 ≤ 6, the value of real number P is? 5: If the inequality x-4x + 3 < 0 and x-6x + 8 < 0 hold at the same time, the value of X satisfies the inequality 2x-9x + a < 0, then the value range of a is? 6: The solution set of inequality 1 ﹤ x + 1 ﹤ 3 is? 7: The solution set of inequality (1 - x) (1 + x) > 0 is? 8: When X-2 < a, the inequality x square-4 < 1 holds, then the value range of positive number a is? 9: If the solution set of inequality MX square + 3 > 2 about X is a, and a is really included in R, then the value range of real number m is? 10: What is the solution set of the inequality x + 2 / X > x + 2 / x? 11: If the solution set of inequality ax + 2 < 6 is (- 1,2), then the real number a is equal to?