SOLUTION: I'm having problems putting this into a formula because I feel that something is missing. Please help. Lance bicycles 37 km/h with no wind. Against the wind he bikes 75 km in th

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time is the same both with and against the wind
t = time
t = distance/rate
w = wind speed
against the wind his rate is 37 - w
with the wind his rate is 37 + w
t = 75 / (37 - w)
t = 110 / (37 + w)
75 / (37 - w) = 110 / (37 + w)
110*37 - 110*w = 37*75 + 75*w
185*w = 37(110 - 75)
185w = 37*35
w = 37*35 / 185
w = 1295/185
w = 7 km/hr wind speed