Mathematics, 26.09.2019 14:30 rajenkins79

Carlos wants to practice piano 2 hours each day. he practices piano for 3/4 hour before school and 7/10 hour when he gets home. how many hours has carlos practiced piano? how much longer does he need to practice before going to bed in order to meet his goal?

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Carlos wants to practice piano 2 hours each day. he practices piano for 3/4 hour before school and 7...