Mathematics, 22.10.2019 22:00, kelsey125

Following a severe snowstorm, ken and bettina reeves must clear their driveway and sidewalk. ken can clear the snow by himself in 3 hours, and bettina can clear the snow by herself in 5 hours. after bettina has been working for 1 hour comma kane is able to join her. how much longer will it take them working together to remove the rest of the snow?

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Following a severe snowstorm, ken and bettina reeves must clear their driveway and sidewalk. ken can...