Patrick B. answered • 10/18/19

Math and computer tutor/teacher

r is the speed of the boat

s is the speed of the current

80/4 = 20 mph downstream

80/5 = 16 mph upstream

r+s = 20

r-s = 16

2r = 36

r = 18

s=2

Cassidy B.

asked • 10/14/19
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Patrick B. answered • 10/18/19

Math and computer tutor/teacher

r is the speed of the boat

s is the speed of the current

80/4 = 20 mph downstream

80/5 = 16 mph upstream

r+s = 20

r-s = 16

2r = 36

r = 18

s=2

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