Question

Solve for x & round the answer to the nearest tenth

Answer 1

6/14 = 7/x
so
x = 7 * 14 / 6 
x = 98/6
x = 16.3

answer
D. x = 16.3

Answer 2

The large triangle & the small one are similar, since their respective bases are parallel. Then we can write:

(8+6)/6 = x/7.  and 14/6 = x/7 or 7/3 = x/7 . Cross multiplication:

7/3 = x/7 → 3x = 49 → x = 49/3 → x = 16.3 (Answer D)