Jaunae15 Jaunae15
  • 02-10-2017
  • Mathematics
contestada

Jessica can paint a room in 12 hours. If Mary helps, it takes them 10 hours. Without help how long would it take for mary to finish this job?

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Zachary101234
Zachary101234 Zachary101234
  • 02-10-2017
Well we know that mary can help remove 2 hours. that means it must take her 12+2=14 hours for mary to finish the job
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