John left the museum and drove south at a rate of 55 mph. Sally left four hours later driving 10 mph faster than John in an effo rt to catch up to him. How
1 answer:
Answer:
22 hours (B)
Step-by-step explanation:
John's velocity = 55mph
Sally's velocity = 65mph
John's time taken = x
Sally's time taken = x - 4
since they must cover the same distance.
and, distance = vel × time
Sally's vel × time = John's vel × time
55x = 65(x-4)
55x = 65x - 220
-10x = -220
x = 22 hours.
Therefore, Sally catches up after 22 hours
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Answer:
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Step-by-step explanation:
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Answer:
No he does not
Step-by-step explanation:
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Answer:
38.7°.
Step-by-step explanation:
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