Question

I need a bit of help. I need to solve for x.

Answer 1

ΔABC and ΔADE are similar, then

`(AB)/(AD)=(BC)/(DE)`

Replacing with data and solving for x,

`\begin{gathered} (4)/(7)=(2)/(x) \\ 4\cdot x=7\cdot2 \\ x=(14)/(4) \\ x=3.5 \end{gathered}`