Question

A rowing team rowed an average of
17.2
miles per hour with the current and
10.4
miles per hour against the current. Determine the team's rowing speed in still water and the speed of the current
I need help fast. anyone?

Answer 1

speed = s
current = c

s + c = 17.2
s - c = 10.4
------------ add
2 s = 27.6
etc.