algebra

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if a student has an average of 8 after 20 tests and then gets a 0 on his 21st test, what would his new average be?

  • algebra -

    8 * 20 = 160

    160/21 = ?

  • algebra -

    x = total score of tests

    x/20 = 8
    x = 160

    160/21 = 7.62 new average

  • algebra -

    thank you.

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