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marysya [2.9K]
3 years ago
13

Isaac practiced the piano three days last week for a total of 9 1/2 hours. On average, how many hours each day did Isaac practic

e?
A. 3 hours
B. 3 hours and 6 minutes
C. 3 hours and 10 minutes
D. 4 hours
Mathematics
1 answer:
vladimir2022 [97]3 years ago
4 0
4 hours my bad if I’m wrong
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I think you meant to type

4(n)-5=7.

4n = 7 + 5

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n = 12/4

n = 3
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