Calculation: 10 / X - (10 / 2.5x) = 1.5
10/x-(10/2.5x)=1.5
10/x-4/x=1.5
6/x=1.5
x=6÷1.5
x=4
If you don't understand this question, you can ask. If you are satisfied, please click "select as satisfactory answer"
RELATED INFORMATIONS
- 1. 2.5x-0.5×8=6,x=? solve equations
- 2. 3x-7/0.4 - x-0.5/0.5 - x/0.2=10?
- 3. x-3x-8/2+1>=2(10-x)/7 I'm counting X
- 4. x-(3x-8)/2
- 5. 7 / 1-8 + 3x = 3x-10-4
- 6. If real numbers x and y satisfy X / 2 ^ 5 + 5 ^ 3 + Y / 2 ^ 5 + 6 ^ 3 = 1, X / 3 ^ 5 + 5 ^ 3 + Y / 3 ^ 5 + 6 ^ 3 = 1, find x + y
- 7. x. If y and Z are real numbers and X + y + Z = 4 √ (x-3) + 3 √ (y-6) = 6 √ (Z-5), then x + y + Z =? X + y + Z = 4 √ (x-3) + 2 √ (y-6) + 6 √ (Z-5) a^2+b^2+c^2+14=4a+2b+6
- 8. 11 (2) if real numbers x and y satisfy: X / (2 ^ 10 + 5 ^ 3) + Y / (2 ^ 10 + 6 ^ 3) = 1, X / (3 ^ 10 + 5 ^ 3) + Y / (3 ^ 10 + 6 ^ 3) = 1, then x + y= Let 2 ^ 10 and 3 ^ 10 be two real roots of the equation x / (T + 5 ^ 3) + Y / (T + 6 ^ 3) = 1 about t The equation x / (T + 5 ^ 3) + Y / (T + 6 ^ 3) = 1 can be obtained It is reduced to the general form of quadratic equation t^2+(5^3+6^3-x-y)t+…… =0 (the part of the ellipsis doesn't matter) According to the relationship between root and coefficient 2^10+3^10=x+y-5^3-6^3 So x + y = 2 ^ 10 + 3 ^ 10 + 5 ^ 3 + 6 ^ 3 my question is: "x + y = 2 ^ 10 + 3 ^ 10 + 5 ^ 3 + 6 ^ 3" this is the result? How many numbers does it equal? Do you want to calculate it hard?
- 9. If real numbers x and y satisfy the following conditions: x ^ (3 ^ 3 + 4 ^ 3) + y ^ (3 ^ 3 + 6 ^ 3) = 1, x ^ (5 ^ 3 + 4 ^ 3) + y ^ (5 ^ 3 + 6 ^ 3) = 1, then x + y = The answer is 432, but do not know the process, please be more detailed, please!
- 10. Real numbers x, y and Z satisfy x + y + Z + 8 = 2 √ (x-1) + 4 √ (Y-2) + 6 √ (Z-3). What is the value of X + y + Z?
- 11. √5x^2-(5√2+1)x+√10=0
- 12. 4/5[5/4(x-4)+5x-10]+(0.1x-0.2)/0.1=x-2 0.1x/0.03-(0.9-0.2x)/0.7=1
- 13. X/2+10=5.5X-1
- 14. Find the coefficient of x ^ 3 in (x + 1) + (1 + x) ^ 2 +. + (1 + x) ^ 10 expansion
- 15. (1-x)+(1-x)^2+(1-x)^3+…… +What is the coefficient of x ^ 2 in the expansion of (1-x) ^ 10
- 16. In the expansion of (2x-3x ^ 3) ^ 10, the coefficient of x ^ 16
- 17. Find the coefficient of the first term of X in (x ^ 2 + 3x + 2) ^ 5 expansion There is another problem: (A / X - √ (x / 2)) ^ 9, where the coefficient of x ^ 3 is 9 / 4, find a
- 18. Find the coefficient of (x ^ 2 + 3x + 2) ^ 5 expansion with X term Ask for a magic hand
- 19. If the sum of the coefficients in the n-th expansion of (3x-1 / x) is 128, what is n equal to
- 20. If the sum of the coefficients in the expansion of (3x-1 / x) ^ n is 128, then the sixth term of the expansion is_____ Knowledge of binomial coefficient in Senior High School