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Eduardwww [97]
3 years ago
15

Increase £120 by 25%​

Mathematics
1 answer:
alekssr [168]3 years ago
6 0
120 * 0.25 = 30
120 + 30 = £150
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How many permutations can be formed from the letters of the word tennessee ?
Over [174]
<span>3780 If you consider every letter in the word "tennessee" to be unique there is 9!, or 362880 different ways to arrange the letters. So let's use that as a starting point. Now there's 4 e's, which we really don't care how they're arranged. So divide by 4!, or 24. Giving us 362880/24 = 15120 different ways to arrange the letters. There's also 2 n's. So divide by 2!, giving us 15120/2 = 7560 different ways. Don't forget the s's either. So another division by 2!, giving 7560/2 = 3780 different ways. And there's no more duplicate letters, so the final figure is 3780 different ways to arrange the letters in the word "tennessee".</span>
8 0
3 years ago
Scale copies.
Ksivusya [100]

Step-by-step explanation:

The value of x is 7......

8 0
3 years ago
Read 2 more answers
Please answer asap <br> What is the value of x in the equation 3(2x + 4) = −6?
nydimaria [60]
First divide 3 both side
Than move 4 to another side
Than divide by 2
\frac{3(2x + 4)}{3}  =  \frac{ - 6}{3 }  \\ 2x + 4 =  - 2 \\ 2x =  - 2 - 4 \\ 2x =  - 6 \\ \frac{2x}{2}  =  \frac{ - 6}{2}  \\ x =  - 3
5 0
3 years ago
Factor completely 3x^2+9x-3<br>3(x^2+3)<br>3(x^2+3-1)<br>3x(x^2+3x-1)<br>prime​
Firdavs [7]

Answer:

Answer from the answer data to choose from

<h2>3(x² + 3x - 1)</h2>

Factor completely

3\left(x+\dfrac{3-\sqrt{13}}{2}\right)\left(x+\dfrac{3+\sqrt{13}}{2}\right)

Step-by-step explanation:

3x^2+9x-3=(3)(x^2)+(3)(3x)-(3)(1)\\\\=(3)(x^2+3x-1)\\\\\text{For}\ x^2+3x-1\ \text{use the quadratic formula}\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x^2+3x-1\to a=1,\ b=3,\ c=-1\\\\x=\dfrac{-3\pm\sqrt{3^2-4(1)(-1)}}{2(1)}=\dfrac{-3\pm\sqrt{9+4}}{2}=\dfrac{-3\pm\sqrt{13}}{2}=-\dfrac{3\pm\sqrt{13}}{2}\\\\3x^2+9x-3=3\left(x+\dfrac{3-\sqrt{13}}{2}\right)\left(x+\dfrac{3+\sqrt{13}}{2}\right)

4 0
3 years ago
Xy + w = 9
Alexandra [31]

xy + w = 9

xy = 9 - w

y = ( 9 - w ) / x


x ( 4 - k ) = p

4 - k = p/x

- k = (p - 4) / x

k = - (p - 4)/x

7 0
3 years ago
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