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larisa86 [58]
3 years ago
7

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

Mathematics
1 answer:
irinina [24]3 years ago
7 0

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{$4.5$}.

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