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OpenStudy (anonymous):
if sarah went to bed at 9:15 pm and woke up for school at 6;45 am, how many hours did she sleep all together?
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OpenStudy (hoblos):
from 9:15 pm to midnight we have 2hr 45min from midnight to 6:45 am we have 6hr 45min so the total is 9hr 30min
OpenStudy (anonymous):
thanks :)
OpenStudy (hoblos):
u r welcome XD
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