3 years ago

What is the solution to the equation?

2 answers:

7 0

B.
X=5

7(5+9)=7•x+7•9
(7•5)+(7•9)=7x+63
35+63=7x+63

Subtract 63 from both sides and you will be left with
35=7x
Divide each side by 7 (you pretty much just divide 35 by 7)

And x=5

Lesechka [4]3 years ago

7 0

To get the answer we have to solve eq.
7(5+9)=7x+7*9
7*5+7*9=7x+63
35+63=7x+63 /-63
35=7x /:7
5=x
The correct answer is B.

You might be interested in

* 14 * x=2 * 28 . What x equal ?

AlladinOne [14]

Answer:

answer is 4

Step-by-step explanation:

look at picture

3 0

3 years ago

Read 2 more answers

For an angle (theta) with the point (5, -12) on its terminating side, what is the value of cosine?

padilas [110]

we are given

(x,y)=(5,-12)

so, x=5 and y=-12

now, we can find r

$r=\sqrt{x^2+y^2}$

$r=\sqrt{5^2+(-12)^2}$

$r=13$

now, we can find cos

$cos(\theta)=\frac{x}{r}$

so, we get

$cos(\theta)=\frac{5}{13}$ ...........Answer

4 0

3 years ago

Sum of interior angles of a convex 14-gon

just olya [345]

Answer: 2160°

Step-by-step explanation:

The sum of angles in a polygon is represented by the formula:

Sum = (n - 2) x 180° where n is the number of sides in the polygon

In this case, the complex polygon has 14 sides (n = 14)

So, (14 - 2) x 180°

= 12 x 180°

= 2160°

Thus, the sum of interior angles of a convex 14-gon is 2160°

3 0

3 years ago

Solve for a<br>5+14a=9a-5 a=

poizon [28]

Answer:

-2

Step-by-step explanation:

5+14a=9a-5

+5 +5

10+14a=9a

-9a -9a

10+5a=0

-5a -5a

10= -5a

÷5 ÷5

2= -a

*-1 *-1

-2=a

4 0

3 years ago

The student faculty ratio at a middle school is 10:2 The total of students and faculty is 520. How many students are there at th

vlabodo [156]

10x and 2x is the answer to your question then do the equation

4 0

3 years ago

Read 2 more answers