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March 27, 2017

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Selma reached into a coin jar, randomly pulled out 100 coins, and found that 20 of them were nickels. If the jar originally contained 250 coins, what would be a reasonable estimate for the total number of nickels originally in the jar before Selma took any out?

  • math - ,

    20/100 = x/250

    100x = 5000

    x = 50

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