Question

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

Answer 1

Answer:

$x=4.5$

Step-by-step explanation:

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

$\frac{x}{9}=\frac{x+3}{15}$ or $\frac{x}{9}=\frac{3}{6}$.

Cross-multiplying, we get:

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