Question

HELP ASAP Solve for x. Show or explain your work.

Answer 1

`x=4.5`

Explanation:

From AAA, both triangles in this figure are similar. Therefore, we can set up the following proportion:

`(x)/(9)=(x+3)/(15)` or
`(x)/(9)=(3)/(6)`.

Cross-multiplying, we get:

`6x=9(3),\\6x=27,\\x=(27)/(6)=\fbox{$4.5$}`.