algebra
posted by Wen on .
A motorboat can maintain a constant speed of 24 mph relative to the water. The boat makes a trip upstream to a certain point in 62 minutes. the return trip takes 34 minutes. What is the speed of the current?

d1 = d2,
(24Vc)1.0333 = (24+Vc)0.5666,
24.8  1.033Vc = 13.6 + 0.5666Vc,
1.0333Vc 0.5666Vc = 13.6 24.8,
1.6Vc = 11.2,
Vc = 7mi/h.
d1 = Distance upstream.
d2 = Distance downstream.
Vc = Velocity of the current.