Respuesta :

Answer:

hard

Step-by-step explanation:

I don't know because I have never learnt these things

Hi1315

Answer:

[tex]1.43[/tex]

Step-by-step explanation:

9kg -------> 12.87

1kg ---------> x

let the unknown number be x

[tex]9 = 12.87 \\ 1 = x \\ use \: \: cross \: \: multipication \\ 9x = 12.87 \\ \frac{9x}{9} = \frac{12.87}{9} \\ x = 1.43[/tex]

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