## anonymous 3 years ago PLEASEEEE HELPPPP!!! WILL GIVE MEDAL! 46. Find the value of x.

1. anonymous

2. anonymous

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

3. anonymous

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

4. anonymous

Like this one?

5. anonymous

It has to do with finding x on an angle.

6. anonymous

Sure I'll have a look

7. anonymous

What is the value of x?

8. anonymous

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

9. anonymous

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

10. anonymous

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

11. anonymous

Lol ok.