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ky
ky asked in Science & MathematicsMathematics · 2 years ago

Math problem?

On his first three tests, Tyler scored 85, 90, and 97. What score must he get on his fourth test to have an average (mean) of 80 for all four tests?

3 Answers

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  • ?
    Lv 7
    2 years ago

    On his first three tests, Tyler scored 85, 90, and 97.

    What score must he get on his fourth test

    to have an average (mean) of 80 for all four tests?

    320 - 272 = 48

  • nbsale (Freond)
    Lv 6
    2 years ago

    A score that will make all 4 add up to 4(80)

  • Como
    Lv 7
    2 years ago

    ( 85 + 90 + 97 + x ) / 4 = 80

    272 + x = 320

    x = 48

    Would have to score 48

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