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The number of minutes needed to complete a job, m, varies inversely with the number of
workers, w. Five workers can complete a job in 28 minutes. How many minutes would it take 7
workers to complete the job?

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Answer :

Answer:

Step-by-step explanation:

m = k/w     m = minutes   w = workers  k = proportionality constant

mw = k

28 * 5 = k = 140

Now when w = 7

  m * 7 = 140

      m = 140 / 7 = 20 min

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