joeysanchez913 joeysanchez913
  • 19-03-2021
  • Mathematics
contestada

It takes Phillip 11 hours to proof read a chapter of hawked learning systems college algebra book and it takes Cynthia 4 hours. how long would it take them working together?

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imbrycehall
imbrycehall imbrycehall
  • 19-03-2021
It would take them 15 hours
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