All categories

3 years ago

5x-7=118 solve for the variable x

Mathematics

2 answers:

Marina CMI [18]3 years ago

8 0

Move all terms that don't contain x to the right side, and solve.

x = 25

myrzilka [38]3 years ago

5 0

X=25 ...... ................

You might be interested in

If a political poll indicates that a 95% confidence interval for a presidential approval rating is between 47% and 57%, what is

jarptica [38.1K]

The answer is that the assumed margin of error is 5%.
Here is how we calculate this;
<span>presidential approval rating is between 47% and 57%
</span>(57% - 47% ) / 2 = 10/2 = 5%

7 0

3 years ago

Is the relationship shown by the data linear? If so, model the data with an equation.

zhenek [66]

Answer:

Therefore the equation of the line through ( -7 , 5 ) and ( -5 , 9) is

Linear Relationship i.e $y-5=2(x+7)$

Step-by-step explanation:

Given:

Let,

point A( x₁ , y₁) ≡ ( -7, 5 )

point B( x₂ , y₂) ≡ (-5, 9)

To Find:

Equation of Line AB =?

Solution:

Equation of a line passing through Two points A( x₁ , y₁) and B( x₂ , y₂)is given by the formula

$(y - y_{1} )=(\frac{y_{2}-y_{1} }{x_{2}-x_{1} })\times(x-x_{1}) \\$

Substituting the given values in a above equation we get

$(y-(5))=(\frac{9-(5)}{-5--7})\times (x--7)\\ \\(y-5)=\frac{4}{2}(x+7)\\\\y-5=2(x+7)...............\textrm{which is the required equation of the line AB}$

Therefore the equation of the line through ( -7 , 5 ) and ( -5 , 9 ) is

Linear Relationship i.e $y-5=2(x+7)$

4 0

3 years ago

Solve the equation 5=1/2 v-3 <br><br> v=?

olya-2409 [2.1K]

5=1/2v-3
5=1/2v
+3 +3
8=1/2v
/1/2 /1/2
16=v

6 0

3 years ago

What number is 5% of 90?

BARSIC [14]

The answer would be 4.5 because 5% of 90= 4.5.

Hope this helped! :)

4 0

3 years ago

Read 2 more answers

Isabella is solving the equation 4x^2=13x-3 with the quadratic formula

laiz [17]

Answer:

x=(3,1/4)

Step-by-step explanation:

Be sure to use the formula...

$-b + or - sqrt{b^{2} - 4ac } / 2a$

- First, move all variables to one side (left) of the equation. You want one side to be equivalent to zero.

-Next, you need to find a, b, and c. This should be...

a=4

b=-13

c=3

- Knowing this, fill in these variable to go along with the formula. I cannot do this for you, as you should try it on your own. But, you should end up with the solution x= (3,1/4).

- Hope this helps! If you need a further explanation or help on any more problems please let me know, as I would be glad to help anytime.

5 0

3 years ago