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Sagot :
well, first off 1 hr =60 minutes. 60 min - 45 min = 15 minutes extra. what is one hour before 4:15? 3:15! Add the subtracted 15 minutes to get 3:30... Hope this helps
Answer:
At 3:30 p.m. she started playing the piano
Step-by-step explanation:
We are given the following information:
Marcy played the piano for 45 minutes.
She stopped playing at 4:15 p.m.
This means that at 3:30 p.m. she started playing the piano.
( since 15 minutes before 4:15 om is 4:00 pm now 30 minutes more before 4:00 pm is 3:30 pm which adds up to:
15+30=45 min.)
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