Respuesta :

JonHenderson55
Answer:  [B]:  " 1 cm : 50 m " .
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Explanation:
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6.3 cm / 315 m  = 1 cm / ? m 

To fill in the "?" (in "m") ;  

Divide 315 by 6.3 ;  to get: 50 m ,

So, the answer is: 1 cm: 50 m; which is answer choice: [B].
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It is B 
Hope this helps :)