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Lisa flies from San Francisco to New York (2500 mi) in 5 hours and then flies from New York to Rome (3487.5 mi) at 465 mph. What is the average speed for her entire trip?

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If Lisa flies from SAN Francisco to New York (2500mi) in 5 hours and then flies from New York to Rome (3487.5 mi) at 465mph. The average speed for the entire trip is 482.5mph.
MUHAMMADNAZHAN

Answer:

443.1305

Step-by-step explanation:

1 mile=0.869 nautical miles

1 mph=0.869 knots

Average speed=Distance/time

Average speed=2172.5/5

=434.5

404.09=3487.5/hours

=8.6305

434.5+8.6305

=443.1305