blue book help---math section

Test Preparation SAT Preparation
1

<h1>13, PAGE 683. iN THE FIGURE, IF X=30, WHAT IS THE CALU EOF X+Y?</h1>

<p>ALSO</p>

2

<p>angle z is inside the triangle, so make the y and x variables enter the triangle as angles as well.
180-x, 180-y, z <----the three angles of the triangle
180-x+180-y+z=180
Place x and y on one side and substitute 30 for z and place all the numerical values on the other side...pretty self-explanatory.</p>