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4 years ago

8(2x-6)=96 solve the equation

Mathematics

2 answers:

Mandarinka [93]4 years ago

7 0

Answer:

x=9

Step-by-step explanation:

8(2x-6)=96

2x-6=96/8

2x-6=12

2x=12+6

2x=18

x=18/2

x=9

ivanzaharov [21]4 years ago

6 0

Hello, thanks for usin Brainly. :)

Let's solve by using distributive property.

8(2x-6)=96

16x-6=96

16x-48=96

+48 +48

16x = 144

x = 9

First, what we did was do 8 x 2 & 6 x 8.

Then, we got 16x-6=96.

We want to get X by itself, therefore we need to get rid of -48, so we 48 to all of our terms.

Then our equation should look like 16x = 144.

Divide and get 9!

Therefore, x = 9.

Wait, how can we be sure?

Let's check our answer.

Let's allow our x value to be 9.

Now, our equation should look like:

8(2(9)-6=96

Follow the PEMDAS rule.

8(18-6)=96

8(12)=96

8 times 12 is 96.

96 = 96 Done!

Therefore, we know our answer is correct.

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PLEASE HELP! BRAINLIEST to correct answer!!

balu736 [363]

Answer:

(-∞,-9)

Step-by-step explanation:

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3 years ago

g If the economy improves, a certain stock stock will have a return of 23.4 percent. If the economy declines, the stock will hav

dusya [7]

Answer:

$E(X) = 23.4* 0.67 -11.9*0.33= 11.759 \%$

Now we can find the second central moment with this formula:

$E(X^2) = \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) = (23.4)^2* 0.67 +(-11.9)^2*0.33= 413.5965$

And the variance is given by:

$Var(X) = E(X^2) - [E(X)]^2$

And replacing we got:

$Var(X) = 413.5965 -(11.759)^2 =275.5105$

And finally the deviation would be:

$Sd(X) = \sqrt{275.5105}= 16.599 \%$

Step-by-step explanation:

We can define the random variable of interest X as the return from a stock and we know the following conditions:

$X_1 = 23.4 , P(X_1) =0.67$ represent the result if the economy improves

$X_2 = -11.9 , P(X_1) =0.33$ represent the result if we have a recession

We want to find the standard deviation for the returns on the stock. We need to begin finding the mean with this formula:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And replacing the data given we got:

$E(X) = 23.4* 0.67 -11.9*0.33= 11.759 \%$

Now we can find the second central moment with this formula:

$E(X^2) = \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) = (23.4)^2* 0.67 +(-11.9)^2*0.33= 413.5965$

And the variance is given by:

$Var(X) = E(X^2) - [E(X)]^2$

And replacing we got:

$Var(X) = 413.5965 -(11.759)^2 =275.5105$

And finally the deviation would be:

$Sd(X) = \sqrt{275.5105}= 16.599 \%$

7 0

3 years ago

Ab-ac=2 for a how do I do this

bazaltina [42]

Solve for A

ab - ac = 2
First, you need to factorize
a(b - c) = 2
a= 2/(b -c)

5 0

3 years ago

Solve this equation for x in terms of y and z: 6x+10y+8z=60. What is the value of x when y=2 and z=-3? Round your answer to the

ioda

Answer:

x=2.66

Step-by-step explanation:

6x=60-10y-8z

x=(60-10*2-8*3)÷6

x=(60-20-24)/6=16/6=2.66

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3 years ago

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worty [1.4K]

Answer:

-44.58%

Step-by-step explanation:

If I spent $83 on a coat and the next week found it for $46, how much did it change? Well 83-46 is $37 and is -$37 because that's how much money I lost. To find the percent change we divide the difference of -37 by the total 83.

-37/83= - 0.44578

To convert from a decimal to a percent, I multiply by 100.

-0.44578(100)= -44.58 rounded.

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3 years ago