Please help me how to set up this problem. Also, please use achart. Two planes l

Question

Please help me how to set up this problem. Also, please use achart. Two planes left an airport at noon. One flew east at a certainspeed and the other flew west at twice the speed. The planes were2700 mi apart in 3 hours. How fast was each plane flying? Please help me how to set up this problem. Also, please use achart. Two planes left an airport at noon. One flew east at a certainspeed and the other flew west at twice the speed. The planes were2700 mi apart in 3 hours. How fast was each plane flying?

Explanation / Answer

D = rt label distance rate time* plane 1 D1 = 3r r 3 hours plane 2 D2 = 3(2r) = 6r 2r 3 hours overall D1 + D2 = 2700 miles 2700/3 = 900 mph 3 hours *The planes are flying simultaneously. From the distance column: 3r + 6r = 2700 9r = 2700 r = 300 mph So plane 1 (eastbound plane) is flying at 300 mph, while plane 2(westbound plane) is flying at 600 mph.

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