Question 395750
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Hi
Let x and c represent rate of boat and current respectively
Question states*** D = r*t OR r = D/t
 x + c = 60mi/1hr
 x - c =  60mi/2hr

 x + c =  60mph
 x - c =  30mph
 2x = 90mph
  x = 45mph, speed of the boat
  45mph + c = 60mph
          c = 15mph, the rate of the current