Question

the distance from New York to San Diego is approximately 2,700 miles.becasue of prevailing winds,when flying east-wast ,the flight usually takes one hour longer than when flying west-east .if a plane from San Diego to new York travels at a forward speed of 540 miles per hour,what is the forward speed of a plane traveling from New York to San Diego under the same condiopptions

Answer 1

Let t represent the # of hours required for the west-east flight.
Then (540 mph)(t) = 2700 miles, and t = 5 hours.  Flying east-west should take 1 hour less, or 4 hours.

This east-west speed would be 2700 miles / 4 hours = 675 mph (answer)