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3 years ago

9 = x/2 + 2 solve for x.

Mathematics

2 answers:

Leya [2.2K]3 years ago

8 0

Answer:

14 = x

Step-by-step explanation:

-2 on both sides you get 7 = x/2, multiply both sides by 2 and you get 14 = x

Temka [501]3 years ago

5 0

Answer:

x= 14

Step-by-step explanation:

First, lets take the L.C.M on one side, so that it becomes a little more unified.

=> 9= X/2 + 4/2

now, lets shift the 2 to the L.H.S to make it even simpler.

=> 18= x+4

Now, lets move 4 to the L.H.S, to subtract it from 18.

=> 14= x

Thus, x=14

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Step-by-step explanation:

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mestny [16]

Answer:

$\begin{array}{cccccc}{x} & {V} & {W} & {X} & {Y} & {Z} & P(x) & {0.20} & {0.20} & {0.20} & {0.20} & {0.20} \ \end{array}$

Step-by-step explanation:

Given

$S = \{V,W,X,Y,Z\}$

$n(S) = 5$

Required

The probability model

To do this, we simply calculate the probability of each container.

So, we have:

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$P(W) = \frac{n(W)}{n(S)} = \frac{1}{5} = 0.20$

$P(X) = \frac{n(X)}{n(S)} = \frac{1}{5} = 0.20$

$P(Y) = \frac{n(Y)}{n(S)} = \frac{1}{5} = 0.20$

$P(Z) = \frac{n(Z)}{n(S)} = \frac{1}{5} = 0.20$

So, the probability model is:

$\begin{array}{cccccc}{x} & {V} & {W} & {X} & {Y} & {Z} & P(x) & {0.20} & {0.20} & {0.20} & {0.20} & {0.20} \ \end{array}$

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2 years ago

Find inverse of f(x) = 2 + 3x / x - 2

NeX [460]

Okay so, we switch out f(x) with y - I’m sure you know this and we get y=2+3x/x-2.

Now just interchange x and y -> x=2+3y/y-2, now multiply both sides with (y-2), we get (y-2)x=2+3y.

Multiply x with the brackets, getting xy-2x=2+3y. Move 3y to the left changing it’s sign, also for -2x to the right: xy-3y=2+2x.

Factor out y from (xy-3y) and get (3-x)y=2+2x - now divide both sides by (3-x) resulting in y=2+2x/3-x .

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3 years ago

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Elina [12.6K]

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3 years ago

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