Homework Help: arithmetic

Posted by franklyn on Sunday, December 20, 2009 at 4:37pm.

If i currently have 12 bottles of water on my shelf, and want to keep a minimum level of 6 bottles at all times. I have an average sale 2 per day. What is the minimum number i would order for enough bottles for 7 days?

thanks.

arithmetic - MathMate, Sunday, December 20, 2009 at 4:44pm
On the average, there are enough bottles for (12-6)/2=three more days. For seven days, we need 2*(7-3)=eight more bottles.
arithmetic - Anonymous, Sunday, April 18, 2010 at 4:29pm
8 more bottles

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