Paul plays piano in a restaurant. He starts work at 6:00 P.M. Every night, he plays for 1 hour 30 minutes, takes a 20-minute break, plays for 2 hours 10 minutes, takes another 10-minute break, and then plays until the restaurant closes at midnight. In all, how much time does Paul actually spend at the piano?

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jsd10370 jsd10370 · Answer 1 · 2017-09-13T15:36:12+02:00

1 hour and 30 minutes
+ 2 hours and 10 minutes = 3 hours 30 minutes
+2 hours and 30 minutes= 6 hours- 30 minutes= 5 hours 30 minutes

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ayoushivt ayoushivt · Answer 2 · 2022-08-01T09:19:36+02:00

The time Paul actually spend at the piano is 3 hours 30 minutes.

An equation is a mathematical statement formed when two expressions are equated using an equal sign.

The equations are useful in determination of unknown parameters.

Paul starts working at 6: 00 pm

The restaurant closes at midnight 12:00pm

Let the time spent in playing piano is given by x hours.

The total time is 12:00 - 6:00 = 6 hours

The time spent in playing piano is equal to The total time subtracted by the time he went for a break.

He took a 20 minutes break and a 10 minute break,

1 hour = 60 minutes

6 hours in minutes is 360 minutes.

The equation formed is,

x = 360 - ( 20 +10)

x = 360 -30

x = 330

3 hours 30 minutes.

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