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29 January, 19:12

By the age of 21, the best violinist and pianist will have practiced at least 10,000 hours. If you practice and instrument 45 minutes (or 0.75 hours) a day for 365.25 days, the length of a year, how many hours will you have practiced?

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  1. 29 January, 19:38
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    273.94 hours.

    Step-by-step explanation:

    1 day = 0.75 hours of practicing in a day.

    365.25 = x

    1/365.25 = 0.75/x Cross multiply

    x = 0.75 * 365.25 Combine

    x = 273.94 hours
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