Question

The excursion boat on the river takes 2½ hours to make the trip to a point 12 miles upstream and to return. If the rate at which the boat travels in still water is 5 times the rate of the river current, what is the rate of the current?The excursion boat on the river takes 2½ hours to make the trip to a point 12 miles upstream and to return. If the rate at which the boat travels in still water is 5 times the rate of the river current, what is the rate of the current?vvvv

Answer 1

Can you help me robotobey?

Answer 2

working on it.

Answer 3

the answer is 2

Answer 4

\[t=\frac{d}{r} \]Let c the current speed. Solve the following for c.\[\frac{12}{(5c-c)}+\frac{12}{(5c+c)}\text{=}\frac{5}{2} \]\[c=2 \text{ mph} \]

Answer 5

Sorry it took so long. Had to deal with some local interruptions.