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3 years ago

6

What does the expression 12f =24 represent?

2 answers:

Law Incorporation [45]3 years ago

6 0

You have to divide both sides by 12 so 12f/12 =24/12 is f = 2

FromTheMoon [43]3 years ago

6 0

12=24/12 so f will equal 2

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What is the sum? StartFraction 3 y Over y squared + 7 y + 10 EndFraction + StartFraction 2 Over y + 2 EndFraction

katovenus [111]

Answer:

$\dfrac{5}{y+5}$

Step-by-step explanation:

Here, we have to find the sum of 2 fractions:

1st fraction: $\dfrac{3y}{y^{2}+7y+10}$

2nd fraction: $\dfrac{2}{y+2}$

Considering the denominator of 1st fraction:

$y^{2}+7y+10$

Using factorization method:

$7y$ can be written as $(2y + 5y)$ .

$\Rightarrow y^{2}+2y+5y+10$

Taking <em>5 common</em> from $5y+10$ and <em>y common</em> from $y^{2}+2y$ : $\Rightarrow y(y+2)+5(y+2)$

Now taking $(y+2)$ common:

$\Rightarrow (y+5)(y+2)$

$\dfrac{3y}{y^{2}+7y+10}$ can be written as $\dfrac{3y}{(y+5)(y+2)}$

Now, calculating the sum:

$\dfrac{2y}{(y+5)(y+2)} + \dfrac{2}{y+2}$

Taking <em>LCM</em> and solving:

$\Rightarrow \dfrac{3y+2(y+5)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5y+10}{(y+5)(y+2)}\\\Rightarrow \dfrac{5(y+2)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5}{(y+5)}$

Hence, answer is $\dfrac{5}{y+5}$ .

4 0

3 years ago

What is the value of <img src="https://tex.z-dn.net/?f=%5Cfrac%7B81%5E4%7D%7B3%5E5%7D" id="TexFormula1" title="\frac{81^4}{3^5}"

IRISSAK [1]

Answer: $3^1^1\\$

Step-by-step explanation:

$\frac{81^4}{3^5}$

$\frac{3^1^6}{3^5}$

The base is same power can be add or subtract

$3^1^6^-^5$

$3^1^1$

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3 years ago

Please:<br> Divide 24 in ratio 3:5

nalin [4]

24/8 = 3

3x3 = 9
5x3=15

so
<span> 24 in ratio 3:5 = 9:15</span>

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Xelga [282]

9,-2 because i used to always get confused but i’m not sure that’s the right answer

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AleksAgata [21]

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3 years ago

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