<p>In the figure above, if z = 30 what is the value of x + y.</p>
<p>A. 60
B. 150
C. 180
D. 210
E. 330</p>
<p>I cannot reproduce the image... hopefully you guys have the book.</p>
<p>D) 210.</p>
<p>Take the other 2 angles in the Triangle including Z, to be T and M.</p>
<p>T+M+Z = 180
T+M = 150.</p>
<p>Then proceed with the simple geo..</p>
<p>X+T = 180
Y+M=180</p>
<hr>
<p>add the two equations</p>
<p>X+Y+(T+M) = 360 , T+M = 150</p>
<p>X+Y = 360 - 150 = 210</p>
<p>Thank you! Ahh.. I got that far conceptually... but it seems my trouble came in trying to setup the equations. I didn't think of using two different variables completely... heh. Thanks!</p>