How do you find what number is 1/3 of 25 or 1/3x=25?
I'm really having a hard time with math, I want to quit but I would be stupid for me not to try and understand. Thanks
回答 (14)
✔ 最佳答案
(1/3)x = 25
3*(1/3)x = 25(3)
x = 75
= 1/3(25)
= 25/3 or 8 1/3
Answer: 8 1/3 or 8.33 1/3 is 1/3 of 25
The other expression is different from 1/3 of 25, the expression requires to find the number where its 1/3 is 25 or question: What is the number whose 1/3 is 25?:
1/3x = 25
x = 3(25)
x = 75
Answer: 75 is the number whose 1/3 is 25.
Just do 25/3.
Answer: 8 1/3
1)
1/3 x 25
= 25/3
2)
1/3(x) = 25
x/3 = 25
x = 3(25)
x = 75
First off, note that you wrote TWO questions:
    x = â
of 25
and
    â
of x = 25
so don't be confused when you get two different answers.
-----
Hint: When you don't remember how to solve a problem, try solving a really simple example, preferably one that you already know the answer to, such as
    ½ of 2 = ?
You don't need to do any calculating to know that half of 2 is 1. But once you look at the solution
    ½ of 2 = 1
you can see that "of" just means "times."
    ½ of 2 = ½ â 2
          = 1
Apply this to your problems.
x = â
of 25
  = â
â 25
  = 8â
â
of x = 25
â
· x = 25
multiply both sides of the equation by 3
3 â â
â x = 25 â 3
x = 75
A number that is 1/3(one third)of 25 means a number when multiplied by 3 gives 25. So to find the number you divide 25 by 3.ie 25/3=8+1/3
Therefore the number that is 1/3 of 25 is 8+1/3
Ryan is correct. Divide both sides of the equation by 1/3, or, easier, multiply them by 3. (same thing). so:
1/3x =25
x = 75 (1/3 * 3 = 1, 15 * 3 = 75)
multiply 25 by the reciprocal of 1/3
25(3/1) = X
25(3) = 75
This is the same as dividing 25 by 1/3.
25/3 so how many 3s make 25
8 r 1 so 8 1/3 or 8.3333333333
1/3 of 25:
1/3 * 25 = x
25/3 = x = 8+1/3
收錄日期: 2021-05-01 12:17:19
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