Answer:
7:9= 0,777... = 7/10 of a bag each day
Explanation:
If he uses 7 bags every 9 days, we should divide 7 bags per 9 days:
7/9: 0,77777...
Which equals to 7 tenths of a bag each day = 7/10
7/9
Put 7 and 9 as a fraction.
7 represents the bags and 9 represents the days.
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