36 is what percentage of 128? A. B. 28 % C. 28.125 % D. 4,608%

Question

36 is what percentage of 128?
A.
B. 28 %
C. 28.125 %
D. 4,608%

in progress 0
Thạch Thảo 2 months 2021-07-25T02:20:34+00:00 1 Answers 1 views 0

Answers ( )

    0
    2021-07-25T02:22:26+00:00

    Answer:

    C is the correct answer:

    Solution for 36 is what percent of 128:

    To get the solution, we are looking for, we need to point out what we know.

    1. We assume, that the number 128 is 100% – because it’s the output value of the task.

    2. We assume, that x is the value we are looking for.

    3. If 100% equals 128, so we can write it down as 100%=128.

    4. We know, that x% equals 36 of the output value, so we can write it down as x%=36.

    5. Now we have two simple equations:

    1) 100%=128

    2) x%=36

    where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

    100%/x%=128/36

    6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

    7. Solution for 36 is what percent of 128

    100%/x%=128/36

    (100/x)*x=(128/36)*x – we multiply both sides of the equation by x

    100=3.55555555556*x – we divide both sides of the equation by (3.55555555556) to get x

    100/3.55555555556=x

    28.125=x

    x=28.125

    now we have:

    36 is 28.125% of 128

    Step-by-step explanation:

    Hope it is helpful….

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )