haleyann715 haleyann715
  • 10-06-2019
  • Mathematics
contestada

Sally can complete a sales route​ by herself in 7 hours. James can do the same job in 9 hours. How long will it take them to do it working together?

Respuesta :

achalkatkar
achalkatkar achalkatkar
  • 10-06-2019

Answer:

(4 days) is the homogeneous mixture

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