Question #edf72

1 Answer
Brandon · Rhys
Feb 12, 2018

#7# days

Explanation:

To work this out, we need to divide the amount we have to how many is used to get the amount of days before we need to buy more milk.

#15/2=7.5# days

As we do not want #.5# days, we have to round down as rounding up will leave buying the milk too late.

#7.5 -> 7# days

#therefore# They will need to buy more milk after 7 days.

Keep in mind that you can order milk #0.5# within a day, but usually you would order earlier and there may not be everyday delivery so you may have to order earlier. But this question says nothing about it so I'll stick with #7# days...

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