Respuesta :

ElenaClaudia
10/100 = x / (810+x) 

1/10 = x / (810 + x)

10x = 810 + x

9x = 810

x = 90 g salt 


mass of solution = mass of water + mass of salt

ms = mw + m salt

ms = 810 + 90

ms = 900 g of solution

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