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?

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

y=mx+b

step-by-step explanation:

m is slope, b is y-intercept

hope this .

r3t40