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Zina [86]
3 years ago
8

Solve the equation below 9 = x/18 x= What is X?

Mathematics
1 answer:
dedylja [7]3 years ago
7 0
X=162, if you multiply 18*9 which is the way to get the answer you get 162
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What's is the answer to the equation 4(x+7)=9(x-1)+22 ?
Aleks [24]
Hello, there!

What's the answer to the equation 4(x + 7) = 9(x - 1) + 22 


Answer: x = 3
------------------------------------------------------------------------------------------------------

Explanation:


First, let's simplify this
4 * x = 4x

4 * 7 = 28

Now, we have 4x + 28 = 9(x - 1) + 22

Now, let's simplify the right side by using the distributive property as well.

9 * x = 9x

9 * -1 = -9

Now, we have 4x + 28 = 9x -9 + 22

Let's combine like terms on the right side

-9 + 22 = 13

Npw, we have 4x + 28 = 9x + 13

Let's isolate the x. To do this, we will first subtract 28 from each side.

4x + 28 = 9x + 13
       -28           -28

4x = 9x - 15

Now, we will subtract 9x from each side.

4x = 9x - 15
-9x   -9x

-5x = -15

Now, we will multiply each side by -1 to make x a positive number.

-5x = -15
*-1    *-1

5x = 15

Finally, we will simplify this completely. To do this, we will divide each side by 5.

5x = 15
---    ----
 5      5

x = 3


Our final answer is x = 3


I hope I helped!

Let me know if you need anything else!

~ Zoe
7 0
4 years ago
Calculate the slope represented by the table.
frozen [14]

Answer:

y=2x-3

Step-by-step explanation:

I hope that helped

5 0
3 years ago
1a.) Given the equation 5+ 6n-4n-15, explain how to get the answer n10.
Savatey [412]

Answer:


Step-by-step explanation:

combine like terms (6n-4n)=(5-15)

2n=-20

n=20/2

n=10

7 0
3 years ago
. Let X and Y be random variables of possible percent returns (0%, 10%,
bazaltina [42]

(a) The marginal distribution of <em>X</em> is

Pr(<em>X</em> = <em>x</em>) = ∑ Pr(<em>X</em> = <em>x</em>, <em>Y</em> = <em>y</em>)

… = 0.0625 + 0.0625 + 0.0625 + 0.0625

… = 0.25

That is, the first equality follows from the law of total probability, with the sum taken over <em>y</em> from {0, 5, 10, 15}. Each probability Pr(<em>X</em> = <em>x</em>, <em>Y</em> = <em>y</em>) is given in the table to be 0.0625.

Similarly, the marginal distribution of <em>Y</em> is

Pr(<em>Y</em> = <em>y</em>) = 0.25

(b) Yes, they're independent because

Pr(<em>X</em> = <em>x</em>, <em>Y</em> = <em>y</em>) = 0.0625,

and

Pr(<em>X</em> = <em>x</em>) Pr(<em>Y</em> = <em>y</em>) = 0.25 • 0.25 = 0.0625.

(c) The mean of <em>X</em> is

E[<em>X</em>] = ∑ <em>x</em> Pr(<em>X</em> = <em>x</em>)

… = 0.25 ∑ <em>x</em>

<em>… </em>= 0.25 (0 + 5 + 10 + 15)

… = 7.5

and you would find the same mean for <em>Y</em>,

E[<em>Y</em>] = 7.5

The variance of <em>X</em> is

V[<em>X</em>] = E[<em>X</em>^2] - E[<em>X</em>]^2

… = (∑ <em>x</em>^2 Pr(<em>X</em> = <em>x</em>)) - 7.5^2

… = 0.25 (∑ <em>x</em>^2) - 56.25

… = 0.25 (0^2 + 5^2 + 10^2 + 15^2) - 56.25

… = 31.25

and similarly,

V[<em>Y</em>] = 31.25

(each sum is taken with <em>x</em> and <em>y</em> from {0, 5, 10, 15})

7 0
3 years ago
Bob scored 1/3 of the number of points that bill scored if Bob scored 24 points how many points did Bill score
-Dominant- [34]

Answer:

Bill = 72

Step-by-step explanation:

Since Bob scored 1/3 of the number of points that Bill would have scored if Bob scored 24 points......

24 divided 1/3

= 72

3 0
2 years ago
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