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Bess [88]
2 years ago
12

Solve for x. The triangles are similar.

Mathematics
2 answers:
erica [24]2 years ago
6 0

Answer:

D. 10

Step-by-step explanation:

We can use similar triangles to solve this question. ΔRSE ≅ ΔFGE by SAS. We can set up this similarity equations: \frac{SE}{GE} = \frac{RE}{FE} . Plugging in the numbers from the diagram, we get \frac{45}{12x-3} = \frac{55}{143} . Using cross multiplication, we get the following equation:

45 * 143 = 55 *(12x-3)\\ 6435 = 660x - 165\\6600 = 660x\\x = 10

Our final answer is D. 10

Serjik [45]2 years ago
5 0

Answer:

\fbox {D. 10}

Step-by-step explanation:

As the triangles are similar :

45/55 = (12x - 3)/143

9/11 = (12x - 3)/143

9 x 13 = 12x - 3

12x = 117 + 3

12x = 120

x = 10

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