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Posted by on Monday, April 30, 2012 at 1:18am.

calculate the average percent
1970 1980 1990 2000
17.2 17.3 17.1 16.6
do you add them all together then divide by 4

  • math - , Monday, April 30, 2012 at 1:19am

    yes

  • math - , Monday, April 30, 2012 at 1:25am

    16.9%

  • math - , Monday, April 30, 2012 at 1:30am

    i got 17.05% you might have put in one of thenumbers wrong check again

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