Question 823659
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Bernie's head start:
s = d / t
d = s * t
t = 11 - 9 = 2 hours
d = 51*2
d = 102 miles
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distance between them after Bernie's head start:
1175 - 102 = 1073 miles
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relative speed of Bernie and Tina:
s = 51 + 65
s = 116 mph
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time to their meeting, relative to Tina's departure:
t = d / s
t = 1073/116
t = 9.25 hours
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clock time:
11 + 9.25 = 20.25
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answer:
they will pass each other at 8:15 PM
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