Answers

2015-11-01T13:06:45+05:30
(4) 7.6g

the equation happens to be 

(10 + x)/(110+x) = 0.15
therefore 10 + x = 16.5 + 0.15x
therefore x - 0.15x = 6.5
therefore .85x = 6.5
therefore x = 7.6 (approx)
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