Question 863008
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Hi
{{{60/(s-2) + 60/(s+2) = 16}}}
 60(s+2) + 60(s-2) = 16(s+2)(s-2)
 30(s+2) + 30(s-2) = 8(s+2)(s-2)
   60s = 8(s^2 - 4)
    8s^2 - 60s -32 = 0
    2s^2 -15x - 8 = 0    
   (2s +1)(s -8) = 0    (Tossing out the negative solution for unit measure)
           s = 8mph
  CHECKING our answer***
{{{60/6 + 60/10 = 16hr}}}
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