Question 667291
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Hi,
 velocity = velocity = D/t  (am going to express time in minutes)
 v - w = 715/130 = 5.5
 v + w = 715/110 = 6.5
 2v = 12
  v = 6mi/min  and w = .5mi/min
0r
 v = 360mph and w = 30mph