Kelli swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 6 minutes. if the river flows at 5 km/hr, how fast can kelli swim in still water? choose the most logical value for the variable to represent. let x = .

speedof 55/9 km/hr., that is,x = 55/9 km/hr.Speed= Distance/TimeTime= Distance/SpeedDistance= Speed*Time.speed, swimmingupstream= (x – 5) km/hr.speed, swimmingdownstream= (x + 5) km/hr.equation:speedof 55/9 km/hr., that is,x = 55/9 km/hr.upstream and downstream speedat