Question

30 POINTS PLEASE HELP
What is the value of x?

Answer 1

x = 27

Explanation:

ΔDQC ≈ ΔDBR

set up proportion based on corresponding sides

39/x = 65/18+x

cross-multiply:

39(18+x) = 65x

702 + 39x = 65x

702 = 26x

x = 27