Respuesta :

The inequality you require is

The number of bottles left at the end of each day is  48 - 3x. So it is:-

48 - 3x < 10

Solving the inequality to find the last part of question:-

-3x < 10 - 48

-3x < -38

x >  38/3 = 12 2/3

So answer is  13 days.


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