maddiec541
maddiec541 maddiec541
  • 21-12-2020
  • Mathematics
contestada

just need some help!

just need some help class=

Respuesta :

nepthalegonzalez nepthalegonzalez
  • 21-12-2020

Answer:

5?

Step-by-step explanation:

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Hrishii
Hrishii Hrishii
  • 21-12-2020

Answer:

x = 3

Step-by-step explanation:

In triangle ABC, DE || AC

Therefore by Basic Proportionality Theorem (BPT):

[tex] \frac{x + 5}{2x} = \frac{4}{3} \\ \\ 3(x + 5) = 4 \times 2x \\ \\ 3x + 15 = 8x \\ \\ 15 = 8x - 3x \\ \\ 15 = 5x \\ \\ x = \frac{15}{5} \\ \\ x = 3[/tex]

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