The number a is 40, which is 10 more than 3 / 5 of the number B. find the number B. (use equation solution)
Let B be X
5 / 3x + 10 = 40
3 / 5 x = 30
X = 30 △ 3 / 5
x=50
RELATED INFORMATIONS
- 1. If the least common multiple of a and B is 210, what is their greatest common divisor?
- 2. (1 and 2 / 3 + 8 and 1 / 5) * x = 2 / 15 * 5 / 9
- 3. Civil service examination questions 3,8,17,32,57, () solved I don't need to know how to calculate. I just want to know if there is a standard answer to this kind of question. I don't want to say it first, but it can be said that there is a rule to follow, that is, there is no way in the options. I don't know how much your answer is. If you think that your most reasonable, you can get additional reward points through the problem-solving process Brothers, continue to give awesome to see how many 98 get 100 reward reward points. When appropriate, I will choose the right answer. I hope you will pay attention to this question.
- 4. -1 / 2,2 / 3,7 / 4,14 / 5,23 / 6... For general term formula Such as the title
- 5. 5 / 6 of a number is more than 9 / 20 of 5?
- 6. Given the function f (x) = (1 / 3) x cube - (A-1) x square + b square x, where a B is a real constant, a necessary and sufficient condition for the function f (x) to be an odd function is obtained
- 7. Find the rules and fill in the numbers. 1,1,3,7,13, (), ()
- 8. How to find the area of a circle Calculate the area of a circle: how to find the far area when you don't know the diameter and radius but know the perimeter? Is it π * (C / π / 2)^
- 9. What's the length of a 1-meter-long rope after it's folded in half? What's the length of the rope after it's folded in half? What's the length of the rope after it's folded in half? What's the length of the rope after it's folded in half?
- 10. Change the following sentences into compound sentences with object clauses 1, where can I buy a big? Can you tell me? 2, when does the party begin? I wonder. 3, how does he learn English? Do you know? 4, what are the girls doing there? Please tell me 5, which car belongs to Bob? I don't know
- 11. Human blood accounts for about one thirteenth of the body weight, and about two-thirds of the blood is water. Mr. Li's weight is 65 kg, and his blood contains about water How many kilos?
- 12. X-1 = half x + quarter x + eighth x (find x,
- 13. How many centimeters is 2 meters
- 14. If x > 2m + 1 and the solution set of x > - M-3 is x > 2, then the value of M is A system of inequalities in elementary school
- 15. 479-201 is calculated by a simple method
- 16. Find the minimum value of 3x ^ 2 + 6x + 5 / 0.5x ^ 2 + X + 1
- 17. Calculation of 19.5-1.9-2.9-3.9 by simple method
- 18. Solving cubic equation of one variable: 3x ^ 3 + x ^ 2 = 28
- 19. How about 1 / 3 + 1 / 15 + 1 / 35 + 1 / 63 + 1 / 99.1/323
- 20. If the values of the algebraic expressions 4x + 8 and 3x-7 are opposite to each other, then the value of X is equal to___ .