Question

Tom took a trip 1020 miles.he traveled by train at 55 miles an hour and the same number of hours by plane at 285 mph.how many hours did the trip take

Answer 1

55t+285t=1020  combine like terms on left side

340t=1020  divide both sides by 340

t=3 hours

However that t is for the amount of time spent on the train and the same amount of time spend on the plane.  So the total time for the trip is 2 times t, which is:

6 hours.