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A tugboat goes 100 miles upstream in 10 hours. the return trip downstream takes 5 hours. find the speed of the tugboat without a current and the speed of the current
 one year ago
 one year ago
A tugboat goes 100 miles upstream in 10 hours. the return trip downstream takes 5 hours. find the speed of the tugboat without a current and the speed of the current
 one year ago
 one year ago

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jeremybBest ResponseYou've already chosen the best response.0
distance = speed x time, so all you need to do is plug in the numbers for the distance and time of the first trip and solve for speed (by dividing distance by time). The same for the second trip.
 one year ago

mystique2626Best ResponseYou've already chosen the best response.0
so the equation looks like 100=x(10)?
 one year ago

jeremybBest ResponseYou've already chosen the best response.0
Yes: 100 miles = speed * 10 hours \[\frac{ 100 miles }{ 10 hours } = speed\] 100/10 = 10, so 10 miles per hour.
 one year ago

mystique2626Best ResponseYou've already chosen the best response.0
okay and then i got 20 for the second equation, did i do that correctly
 one year ago
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