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  • Jan 24, 2009, 08:05 AM
    Cnewsteph75
    Obtaining garde for exact average
    The question is Meaghan has grades of 84,65, and 76 on three social studies test. What grade must she obtain on the next test to have an average of 80 for 4 tests
  • Jan 24, 2009, 08:09 AM
    KISS

    Questions for you?

    What's the formula for average?

    What's the formula for the average of 4 numbers?

    Plug in and simplify?

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