Andros has an oil fired heating system. In a 30-day period he used a full tank of oil at a constant rate per day. At a different
time of the year the amount of oil Andros uses per day is 1 3 of the rate used in the 30-day period. (a) How many days should a full tank of oil?
1 answer:
To resolve this, we multiply the 30-day timeframe by 7, resulting in a total of 210 days.
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