Seudónimo Seudónimo
  • 07-12-2018
  • Mathematics
contestada

Guys help me please with please

Guys help me please with please class=

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Аноним Аноним
  • 07-12-2018

work = rate x time

1 = 1/3 x 3         1st worker

1 = 1/6 x 6         2nd worker

Combined rate: 1/3 + 1/6

1 = (1/3 + 1/6)t

1=1/2t

t=2 hrs


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