Respuesta :

Answer:

We will create a proportional relationship to find x.

[tex]\frac{12}{3} = \frac{20}{x}\\\\12x = 60\\\\x = 5[/tex]

The missing side is D. x = 5.

kritu58

Answer:

I don't know the exact answer but I that x=5

Step-by-step explanation:

12/3=20/x

12x=20*3

12x=60

x=60/12

x=5

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