So you know: 1) There are 180° in a triangle. 2) A straight line is also 180°. So the three angles in the triangle are 2x, 103-x, and (180-(6x-7)). Solve for x! 2x + 103-x + (180-(6x-7)) = 180 2x + 103-x + 180-6x+7 = 180 -5x = -110 x = 22
The chairs will be arranged in a way such that R * C 70
We know that R 20
70 / 20 = 3.5; however, you can't have half of a chair.
So find all the factors of 70 which don't exceed 20.
1, 70
2, 35
<h2>5, 14</h2><h2>7, 10</h2><h2></h2><h2>There are four ways that Brooke can set up the chairs:</h2><h2>5 rows of 14</h2><h2>7 rows of 10</h2><h2>10 rows of 7</h2><h2>14 rows of 5</h2>