Problema Solution
A passenger plane made a trip to Las Vegas and back. On the trip there it flew 432 mph and on the return trip it went 480 mph. How long did the trip there take if the return trip took nine hours?
Answer provided by our tutors
let 't' the time of the trip to Las Vegas
the return trip: 9 hours
since distance = speed*time
432*t = 480*9
by solving the equation we find
t = 10 hours
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the trip to Las Vegas took 10 hours.