You travel 5 miles downstream in a kayak at a speed of r miles per hour. You turn around and travel 6 miles upstream at a speed of 0.75r miles per hour. Finally, you turn around and return to your original starting point at a speed of r+1 miles per hour a. Write a model in simplifies form for the total time t (in hours) of the trip.
b. How long does your trip take when r is 5 miles per hour?

step-by-step explanation:

through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i.   when x = 0, y = 3, so the y-intercept is (0, 3).

if graphs are part of the problem statement, share them.   .

no this is a nonlinear negative

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

one set of data has more variation than the other. hope this !