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March 27, 2017

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To get an A in history, a student must score an average of 90 on four papers. Scores on the first three papers were 92, 83, and 88. What is the lowest score that a student can make on the last paper and still get an A?

  • math - ,

    An average of 90 on four papers means that the total of the four papers must be:
    4*90 = 360
    If you know the scores of three of the four papers, can you find the minimum of the fourth?

  • math - ,

    The lowest score the student could make on the last paper and still get an A is 97%. So all the test scores would be: 92, 83, 88, and 97.

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