Answer:
Option D is the correct answer.
Step-by-step explanation:
the time out.
Time taken for back = t-1
We have plane's average speed out was 300 mph and average speed on the way back was 350 mph.
That is
Dividing both equations
Time taken for back = t-1 = 7-1 = 6 hours.
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Step-by-step explanation:
1/ 3 is the probability of getting one head
57 divided by 970=<span>0.05876288659</span>
