Mark M. answered • 07/24/18

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Retired Math prof with teaching and tutoring experience in trig.

(Distance = (Rate)(Time)

Let x = speed of the LA bound plane

Then, x+60 = speed of NYC bound plane

Sum of distances = 2464

3.4x + 2.4(x+60) = 2464

5.8x + 144 = 2464

5.8x = 2320

x = 400 MPH x+60 = 460 MPH