Question

while on vacation Kevin went for a swim. Swimming against the current took 8 min. to go 200 meters coming back took half as long. Find Kevin's average swimming speed and the water current.

Answer 1

Will give medal 4 the help.

Answer 2

d= rt
200m = 8 min ( Kevin- Current)
Kevin - current = 25m/min
200m = 4 min (Kevin + current)
Kevin + current = 50

Now you add subtract Kevin - current from Kevin + current to get...
Kevin + current - (Kevin - current) = 50m/min - 25m/min
2 current = 25m/min
current = 12.5m/min

Now we plug current in and solve
Kevin + 12.5m/min = 50
Kevin = 37.5m/min

Hope that helps

Answer 3

thanks