Answers

1. Answer:

   7 1/2 bottles will last 9 days

   Step-by-step explanation:

   To answer this, divide ‘7 1/2 bottles’ by ‘5/6 bottle per day:”

    7 1/2 bottles

   ———————–

    5/6 bottle/day

   The unit “bottle”/”bottles” cancel, and so we are left with

    7 1/2 day

   ——————-  and this is equivalent to   15 days/2  divided by 5/6 OR

       5/6

    15 days/2 times 6/5:

   15(6)

   ——— days = 18/2 days = 9 days (answer)

   2(5)

   7 1/2 bottles will last 9 days.

   Reply
2. Answer:

   9 days

   Step-by-step explanation:

   1 day: 5/6        2 days:  10/6       3 days:   15/6        4 days:  20/6   5  days: 25/6

   6 days:  30/6        7 days:  35/6         8 days:  40/6       9 days: 45/6

   If you divide 45 and 6 by 3 you get 15/2.  If you put 15/2 into a mixed number you would get 7 1/2.  So 9 days would be your answer.

   Reply