## mystique2626 Group Title 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

1. jeremyb Group Title

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.

2. mystique2626 Group Title

so the equation looks like 100=x(10)?

3. jeremyb Group Title

Yes: 100 miles = speed * 10 hours $\frac{ 100 miles }{ 10 hours } = speed$ 100/10 = 10, so 10 miles per hour.

4. mystique2626 Group Title

okay and then i got 20 for the second equation, did i do that correctly

5. jeremyb Group Title

Yep.