Question

It takes a plane 40 minutes longer to fly from Boston to Los Angeles at 525 miles per hour than it does to return at 600 miles per hour. How far apart are the cities?
Let T be the shorter of the two times (in hours), and D be the distance

600 T = D
525 (T + 2/3) = D = 525 T + 350
600 T = 525 T + 350
75 T = 350
T = 4 2/3 hours
D = 600 T = 2800 miles

Related Questions

it takes a plane 40 min longer to fly from boston to los angeles at 525 mi/h than it does to return... A plane traveling from Chicago to Boston with a tailwind of 10 miles per hour takes 4 hours. The ret...