Question 897803
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Hi
re TY, r = 10mph and r + c = 12mph, so c = 2
D = rt
(r+c)2 = 24
(r-2)3 = 24

r + c = 12
<u>r - c = 8</u>
  2r = 20
   r = 10mph and c = 2mph   (r + c = 12)