All categories

2 years ago

×-2+2×+4+2×-2=180 what does x equal in this equation.

Mathematics

1 answer:

daser333 [38]2 years ago

6 0

Answer:

x = 36

Here's how I got that:

- Group like terms -

x - 2 + 2x + 4 + 2x - 2 = 180

↓

5x - 2 + 4 - 2 = 180

↓

5x = 180

- Divide both sides by 5 -

5x/5 = 180/5

↓

x = 36

~ That's all folks ~

-Siascon

You might be interested in

A rectangle is divided into 8 equal parts two parts are shaded which fraction is equivalent to the shaded area of the rectangle

Irina-Kira [14]

2/8 but that could be reduced to 1/4

8 0

2 years ago

Read 2 more answers

A person is standing 50 ft from a statue. The person looks up at an angle of elevation of 8 degrees when staring at the top of t

borishaifa [10]

The height of the statue is 19.5 feet.

Why?

We can solve the problem using trigonometric formulas. In this case, we are going to use the trigonometric formula of the tangent.

We know that the person is standing 50ft from the statue, so, it will be the base of the two triangles formed by both angles (elevation and depression)

Using the trignometric formula, we have:

First triangle:

$tg(\alpha )=\frac{h_{1}}{base} \\\\tg(8\°)=\frac{h_{1}}{50ft}\\\\0.14*50ft=h_1\\\\h_1=7ft$

Second triangle:

$tg(\alpha )=\frac{h_{2}}{base} \\\\tg(14\°)=\frac{h_{1}}{50ft}\\\\0.25*50ft=h_1\\\\h_1=12.5ft$

Now, the total height of the statue will be:

$TotalHeight=h_1+h_2=7ft+12.5ft\\\\TotalHeight=19.5ft$

Have a nice day!

8 0

3 years ago

Answer:

emmainna [20.7K]

Let the numbers be n, n+2, n+4

Sum equals too= 13+2(n+4), which is 2n+21

a) Equation--> n+n+2+n+4= 2n+21

b) Solution--> 3n+6= 2n+21

=> n= 15

c) Second number--> 17 (15+2)

Third number--> 19 (15+4)

d) 15+15+2+15+4=30+21

=> 51= 51

So, the equation is true.

And pls mark me brainliesttt :)))

8 0

2 years ago

Tommy is a video game designer at a new start-up company. How much does he make per month?

Ostrovityanka [42]

7,103 monthly is what he makes

7 0

2 years ago

Read 2 more answers

Ln bisects klm into two congruent angles measuring (3x-4) and (4x-27) Find klm

blsea [12.9K]

The answer would be 135 (B)

4 0

3 years ago