14.2k views
5 votes
fran swims at a speed of 2.6mph in stillwater the river flows at a speed of 0.4mph how long will it take her to swim 4.4mi upstream______ and 4.4mi downstream_______.  PLEASE HELP!!

User Latoya
by
8.8k points

1 Answer

3 votes
Her speed will be affected by the speed of the river therefore her speed upstream will be 2.6-0.4 mph and her speed downstream will be 2.6+0.4mph
Therefore upstream it will take 4.4/2.2=2 hours
And downstream it will take 4.4/3=1.47 hours (3sf)
User AtomicBoolean
by
8.3k points