Finding the current of a stream pamela requires 3 hours to swim 15 miles downstream on the illinois river. the return trip upstream takes 5 hours. find pamelas average speed in still water. how fast is the current?

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

Ibelieve it’s 5 and then 3

What is your question again i don't understand