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Inessa05 [86]
2 years ago
12

3w = -27 (equation) ​

Mathematics
2 answers:
DanielleElmas [232]2 years ago
7 0

Answer:

w = -9

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    3*w-(-27)=0

Step by step solution :

Step 1: Pulling out like terms

 Pull out like factors :

  3w + 27  =   3 • (w + 9)  

Equation at the end of step 1:

Step 2:

Equations which are never true:

Solve :    3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

Solve  :    w+9 = 0  

Subtract  9  from both sides of the equation :  

                     w = -9

One solution was found :

w = -9

kotykmax [81]2 years ago
5 0
W=-9

Explanation: 3w=-27

Divide 3 from -27

-27 divided by 3 = -9
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Answer:

$803.25

Step-by-step explanation:

Given data

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2 years ago
Solve the equation below for x.<br> x – 15.2 = 76
Amanda [17]

Answer:

91.2

Step-by-step explanation:

add to both sides 15.2 so 76+15.2=91.2

7 0
2 years ago
Find the variance of this probability distribution. Round to two decimal places.​
attashe74 [19]

Answer:

Variance = 4.68

Step-by-step explanation:

The formula for the variance is:

\sigma^{2} =\frac{\Sigma(X- \mu)^{2}}{N} \\or \\ \sigma^{2} =\frac{\Sigma(X)^{2}}{N} -\mu^{2} \\

Where:

X: Values \\\mu: Mean \\N: Number\ of\ values

The mean can be calculated as each value multiplied by its probability

\mu = 0*0.4 + 1*0.3 + 2*0.1+3*0.15+ 4*0.05=1.15

\frac{\Sigma (X)^{2}}{N} =\frac{(0^{2}+1^{2}+2^{2}+3^{2}+4^{2})}{5} =6

Replacing the mean and the summatory of X:

\sigma^{2} = \frac{\Sigma(X)^{2}}{N} -\mu^{2} \\= 6 - 1.15^{2}\\= 4.6775

4 0
3 years ago
Are the quadrilaterals similar? If so, give the scale factor. If not, explain.
castortr0y [4]
These are not similar.  For them to be similar, they need to exist in proportion to each other for every single side.  The ratio of the 12:9 sides is 4:3 when reduced.  The ratio of the other 2 sides is 5:3.  They all have to have the same ratio for them to be similar.
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3 years ago
5-2(x+5)=3x-15 solve for X
Maslowich

Answer:

x= 2

Step-by-step explanation:

5 -2(x +5)= 3x -15

Expand:

5 -2x -2(5)= 3x -15

5 -2x -10= 3x -15

Simplify:

-2x -5= 3x -15

Bring x terms to 1 side, constant to the other:

3x +2x= 15 -5

5x= 10

Divide both sides by 5:

x= 10 ÷5

x= 2

8 0
3 years ago
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