Question

Alvin paddled for 4 hours with a 6-km/h current to reach a campsite. The return trip against the same current took 10 hours. How do you find the speed of Alvins canoe in still water?

Answer 1

Set them equal to one another,
`(x+6)*4=(x-6)*10`
`4x+24=10x-60`
subtract `4x` and add `60` to both sides:
`84=6x`
divide by `6`
`14=x`
the canoe traveled `14"mph"` in still water.