Keegan can paddle his kayak 4 miles per hour in still water. It takes him as long to paddle 3.5 miles upstream as it takes him to travel 24.5 miles downstream.

Question

Determine the speed of the rivers current.

Muse variable c to represent the speed of the rivers current in miles per hour.

Answer 1

Distance/rate = time

3.5/4-c = 24.5/4+c

Multiply by 2 then divide by 7

1/(4-c)=7/4+c

4+c =28-7c you finish it from ere!