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These triangles are similar what is the value of x

 

 Feb 25, 2021
 #1
avatar+602 
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The sides are being multiplied by $5$, so $3x+8=4*5=20\implies 3x=12\implies\boxed{x=4}$.

 Feb 25, 2021
 #2
avatar+964 
+1

\(\frac{3x+8}{15} = \frac{4}{3}\)

 

\(\frac{3x+8}{15} = \frac{20}{15}\)

 

3x + 8 = 20

 

3x = 12

 

\(\boxed{x = 4}\)

 Feb 25, 2021

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