Question

if we subtract 1/2 from a number and multiply the result by 1/2 we get 1/8 then the number is​

Answer 1

Answer:

shjhkl27885_j do okhhfh

Answer 2

Answer:

Given :-

• $\sf\: If\: we\: subtract\: \dfrac{1}{2} from\: a\: number\: and\: multiply\: the\: result\: by\: \dfrac{1}{2} we\: get\: \dfrac{1}{8}$

Find out :-

• $\sf\: then\: the\: number\:.$

Solution :-

$\sf\: Let\: the\: number\: be\: x$

$\sf\: If\: we\: subtract\: \dfrac{1}{2} from\: a\: number\: and\: multiply\: the\: result\: by\: \dfrac{1}{2}, then\: we\: get\: \dfrac{1}{8}$

$\sf\: So\: the\: equation\:$

$\green\Rightarrow\bigg(\dfrac{1}{2}\bigg) \times \bigg(x - \dfrac{1}{2}\bigg) = \dfrac{1}{8}$

$\green\Rightarrow\bigg(\dfrac{1}{2}\bigg) \times \bigg(\dfrac{2x - 1}{2}\bigg) = \dfrac{1}{8}$

$\green\Rightarrow\dfrac{1}{2} \times \dfrac{2x - 1}{2} = \dfrac{1}{8}$

$\green\Rightarrow\dfrac{2x - 1}{4} = \dfrac{1}{8}$

$\green\Rightarrow 16x - 8 = 4$

$\green\Rightarrow 16x = 4 + 8$

$\green\Rightarrow 16x = 12$

$\green\Rightarrow x = \cancel{\dfrac{12}{16}}$

$\green\Rightarrow\dfrac{3}{4}$

$\therefore\sf\: The\: answer\: of\: this\: question\: is\: \dfrac{3}{4}$