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11 November, 09:21

Heating oil is to be poured at the constant rate of 4.5 gallons per minute into a 400-gallon tank that already contains 115 gallons of heating oil. What fraction of the tank's total capacity will be full in 30 minutes?

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  1. 11 November, 09:41
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    5/8

    Step-by-step explanation:

    The volume after 30 minutes is:

    (4.5 gal/min) (30 min) + 115 gal = 250 gal

    The fraction of total capacity is:

    250 gal / 400 gal = 5/8
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