PLEASEEEE HELPPPP!!! WILL GIVE MEDAL!

46. Find the value of x.

Question

PLEASEEEE HELPPPP!!! WILL GIVE MEDAL!

46. Find the value of x.

anonymous · Answer

attachment

anonymous · Answer

Aha..These are similar triangles, because they have two sides with the same ratio 2:1. (the sides with lines through them). Since these are in ratio 2:1, so will every other side.

so 20:(3x-5) = 2:1
or can be written as $$\frac{20}{3x-5}=\frac{2}{1}$$
multiply up the 3x-5 to get
$$20=2(3x-5)=6x-10$$
Divide both sides by common factor: 2
$$10=3x-5$$
Adding 5 to both sides:
$$15=3x$$
Divide both sides by 3
So x = 5

anonymous · Answer

Thank You Sooo Much! Your better than my teachat explaining! Are you up for another?

anonymous · Answer

Like this one?

anonymous · Answer

It has to do with finding x on an angle.

anonymous · Answer

Sure I'll have a look

anonymous · Answer

What is the value of x?

anonymous · Answer

Yeah you should probably post a new question, but I'll answer anyway...
These are vertically opposite angles which are ALWAYS equal
So just solve:
142 = 2x+24
divide by 2:
71 = x + 12
59 = x

anonymous · Answer

Ok, I just have 2 more. Would you like me to post a new question?

anonymous · Answer

Yeah. That'd be great. Sometimes people get pissed off if you don't

anonymous · Answer

Lol ok.