Question

I need help ASAP!

Answer 1

Whats up ?

Answer 2

with?

Answer 3

what is your question . . .

Answer 4

ok i am asking her what her question is

Answer 5

This problem that is attached...

Answer 6

ok

Answer 7

35 all you have to do is try them out and remember they have to add up to 180

Answer 8

because it is a triangle

Answer 9

wait. so if you were to plug in any number to the variable. lets say x=2 will I get the same answer?

Answer 10

to your problem ?

Answer 11

yeah.

Answer 12

No, because the sum of the angles of a triangle must equal 180

Answer 13

yeah

Answer 14

can you walk me through please?

Answer 15

Sure.

So you have a triangle, which has 3 angles. All of the angles must add up to 180 degrees.

In this problem:

Angle 1 = (3x)
Angle 2 = (x+10)
Angle 3 = (2x-40)

Since you must add all of the angles together, you're equation looks like

(3x) + (x+10) + (2x-40) = 180
Angle 1 + Angle 2 + Angle 3 = Total number of angles in a triangle

Now that we have that, we want to get the x's by theirselves and the numbers by themselfs.

In order to get a POSITIVE 10 to the other side, we do the opposite and subtract

(3x) + (x) + (2x-40) = 180 -10

Now, it's the opposite, a NEGATIVE 10

Same, with the NEGATIVE 40, to make it a POSITIVE 40

(3x) + (x) + (2x) = 180-10+40

So now we can combine. x is the same as 1x, right?... so 1 + 2 + 3 = 6.
180-10+40 equals 210, so we get

6x = 210

Now to solve for x: We see 6 is MULTIPLIED by X, so we do the opposite and DIVIDE

So, that makes it x = 210/6

210/6 = 35

So x = 35

Answer 16

oh now I get it. thanks!!!

Answer 17

Anytime!