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stupidinmath

eric can wash the family van is 1hr. stefan can wash it in 45 min. how long will it take them if they work together?

  • one year ago
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  1. UnkleRhaukus
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    w=60mins eric w=45 mins stefan w/60=e w/45=s e+s=w/60+w/45=

    • one year ago
  2. UnkleRhaukus
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    simplify and solve for w

    • one year ago
  3. UnkleRhaukus
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    how many minutes?

    • one year ago
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spraguer (Moderator)
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