Question

HELPPPPP PLZZZ ITS TIMEDDD

Solve for the unknown length.

Answer 1

37.5 units

Explanation:

I assume that there is condition: BC║DE . If so, then ΔABC ~ ΔADE ⇒ that corresponding sides are proportional.

`(BC)/(DE)` =
`(AC)/(AE)`

AC = 30 + 20 = 50

`(x)/(15)` =
`(50)/(20)` ⇒ x =
`(15*50)/(20)` = 37.5 units