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3 years ago

Can you simplify 81/10? If you can what is it?

2 answers:

7 0

Yes, 81/10 can be simplified. Since it is an improper fraction, since its numerator is larger than its denominator, that means it can be converted to a mixed number.

First, find how many times the numerator goes into the denominator.
81 goes into 10 8 times, with a remainder of 1.
This means 81/10 is equal to 8 and 1/10.

As a mixed number, 81/10 is 8 and 1/10.

To further simplify this, you can convert it to an integer.
First, convert 1/10 to a decimal.
1/10 = 0.1
Then, add this decimal to the whole number, 8.
8 + 0.1 = 8.1
This means 8 and 1/10 is equal to 8.1.

As an integer, 8 and 1/10, which is simplified from 81/10, is equal to 8.1.

Answers:
81/10 = 8 and 1/10 = 8.1

Hope this helps!

Maksim231197 [3]3 years ago

3 0

The answer would be 8 1/10.
81 divided by 10 = 8r.1 (your whole number)
Your remainder then goes as your numerator.

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$\dfrac{4}{x}+\dfrac{4}{x^2-9}=\dfrac{3}{x-3}$

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use <em>(a - b)(a + b) = a² - b²</em>

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use FOIL

$4x=(x)(-x)+(x)(12)+(3)(-x)+(3)(12)\\\\4x=-x^2+12x-3x+36$

subtract 4x from both sides

$0=-x^2+12x-3x+36-4x$

combine like terms

$0=-x^2+(12x-3x-4x)+36\\\\0=-x^2+5x+36$

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The product is 0 if one of the factors is 0. Therefore:

$x-9=0\ \vee\ x+4=0$

$x-9=0$ <em>add 9 to both sides</em>

$x=9\in D$

$x+4=0$ <em>subtract 4 from both sides</em>

$x=-4\in D$

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