Write a function y=f(x) that gives the time y, in hours, that it takes steve and sally to paddle to elk Island. Hint: use the formula d=rt

Question

Steve and Sally went canoeing on Red river on a day when the current flowed at 3mi/h. They left at 8:30 A.M and paddled upstream until they reached Elk Island, where they stopped to have lunch. After an hour and a half, Steve and Sally got back in their canoe and paddled downstream, returning to their starting at 4:00 P.M. They paddled a total of 24mi during the day.

Answer 1

Let x = the rate of the canoe in still water.

 

7.5 = 24(x + 3) + 1.5