Chan rows at a rate of 8 mph in still water. it takes him three hours to row upstream from his house to the park. he rows back home, and it takes him 2 hours. what is the speed of the current?

d = r * t

                               time                rate                       distance

Downstream:           2                   8 + c                     d = 2(8 + c)

Upstream:                3                   8 - c                      d = 3(8 - c)

Since the distance is the same, we can set the distance equations equal to each other and solve for c.

2(8 + c) = 3(8 - c)

16 + 2c = 24 - 3c

16 + 5c = 24

      5c = 8

        c =

        c = 1.6

1.6 mph

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x