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Posted by on Thursday, March 14, 2013 at 9:41pm.

The recommended daily intake (RDI) of a nutritional supplement for a certain age group is 600 mg/day. Actually, supplement needs vary from person to person. Write an absolute values inequality to express the RDI plus or minus 50 mg and solve it.

  • Algebra - , Friday, March 15, 2013 at 9:39am

    |x-600| <= 50
    550 <= x <= 650

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