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DochEvi [55]
3 years ago
8

Solve -14 +5x =-12 really need this answer

Mathematics
2 answers:
Paladinen [302]3 years ago
7 0
Move the 14 over and get
5x = 2
divide by 5
x = 2/5
zloy xaker [14]3 years ago
5 0
You solve equations by getting the variable all by itself on one side of the equal sign. And whatever the variable equals will be on the opposite side of the variable.

For example, x + 2 = 10
It is a simple expression. Something is being added to x to get 10.
So, what could we do to get the x variable all by itself?
Well, the answer is simply. We can subtract 2 from the left-hand side to get the x variable by itself.

But remember, anything you do on one side of the equation, you must do on the other side.

x + 2 - 2 = 10 - 2
x = 8

In this case, x is equal to 8.

Now let's tackle the expression you wanted to be solved.

-14 + 5x = -12

We see that the x variable is on the left-hand side of the equation. And it is being multiplied by 5 and is being subtracted by 14.

Adding a negative number to a positive number is the same thing as subtracting from the positive number.

So, we could rearrange the left-hand side to be 5x - 14.

Now we have 5x - 14 = -12

Let's first add 14 to the left-hand side. If we add 14 to the left-hand side of the equation, the -14 will be gone!

But, if we do one thing on one side of the equation, we must also do the same thing to the other side of the equation.

5x - 14 + 14 = -12 + 14
5x = 2

Now we have the equation 5x = 2

What can we do now? Well, the x variable is being multiplied by 5.
So, how can we reverse that operation to get the x variable by itself?

We can divide the 5x term by 5. That way will get the x variable all by itself.
And whatever we do on one side, we must do on the other side.

5x / 5 = 2/5
x = 2/5

Now we know that x is equal to 2/5 or 0.4.




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Answer:

18

Step-by-step explanation:

3 x 3 = 9

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5 0
3 years ago
The safety inspector in a large city wants to estimate the proportion of buildings in the city that are in violation of fire cod
storchak [24]

Answer:

Check Explanation.

Step-by-step explanation:

The sample will be a representative of the entire build us in the city.

For a sample size 35, 3 have fire code violations, hence, the proportion of houses with fire code violations = (3/35) = 0.0857 = 8.57 %

The uncertainty in the estimate is given in the form of standard error.

Standard error = √[(p(1-p)/n]

n = sample size = 35, p = 0.0857, 1 - p = 0.9143

Standard error of the sample = √(0.0857×0.9143/35) = 0.1616

In terms of the population, (0.1616/35) = 0.00462

Proportion of buildings with fire code violations = (8.57 ± 0.462) %

8 0
3 years ago
Need help with 35 PLZ urgent
Sophie [7]

The formula is K = v^2 /2

You are told K = 32.

Replace K and solve for v:

32 = v^2 / 2

Multiply each side by 2:

64 = v^2

Take the square root of both sides:

v = √64

v = 8 meters per second.

3 0
3 years ago
luna ray has 1 orange pick for every 2 green picks.How manu green picks does luna have if she has 12 total picks
Bess [88]
This is how you do it!

So, There is a ratio of 1:2 for the orange to green.
This means that e can write an equation like this:

Let x be the orange picks

x + 2x = 12
3x = 12
x = 4

This means that there are 4 orange picks, and also 8 green picks

Now we can check that by simplifying the ratio --> 4:8 = 1:2

Therefore, your answer would be 8 green picks

Hope this helped!
3 0
3 years ago
Read 2 more answers
AGD and [ ? ] are alternate exterior angles
lawyer [7]

Answer: EHB

or you could use angle BHE

or angle H, but I would try to use EHB

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