Mathematics: One -tenth of books are picture books 2/10 are story books and half are science fiction and remainings are encyclopaedia what fraction are encyclopaedia

One -tenth of books are picture books 2/10 are

Ответ:

babas97

16.03.2022

Mathematics

1/5 of books are encyclopedia

Step-by-step explanation:

Remaining fraction:

1 - (1/10 + 2/10 + 5/10) = 1 - 8/10 = 2/10 =1/5

1/5 of books are encyclopedia

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Ответ:

mem8163

16.03.2022

Mathematics

Let the total fraction of books be 1, then;

$1 - ( \frac{1}{10} + \frac{2}{10} + \frac{1}{2} ) \\ 1 - ( \frac{(1 + 2 + 5)}{10} ) \\ (1 - \frac{8}{10}) = \frac{(10 - 8)}{10} \\ \frac{2}{10} = \boxed{ \frac{1}{5} }$

Therefore, 1/5th of the books are encyclopaedia.

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Ответ:

Clover1072

15.10.2021

Mathematics

6x - 2 = -4x + 2
Spencer: 6x - 2 = -4x + 2 /+4x6x - 2 + 4x = -4x + 2 + 4x10x - 2 = 2
Jeremiah:6x - 2 = -4x + 2 /-6x6x - 2 - 6x = -4x + 2 - 6x-2 = -10x + 2
They both are correct. But in Jeremiah's version of solving the equation, we would have to multiply equation by -1, which we don't have to do in the Spencer's version.
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One -tenth of books are picture books 2/10 are story books and half are science fiction and remainings are encyclopaedia what fraction are encyclopaedia

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