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anonymous

  • 5 years ago

in preparation for the final exam, which counts as two exams, a student has scores of 88 and 97 and 91. what does the student need on the final exam to have a 90 average?

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  1. anonymous
    • 5 years ago
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    (88+97+91+x)/4=90 360-88-97-91=x=84

  2. anonymous
    • 5 years ago
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    oh wait, thats also wrong! counts as two exams...

  3. anonymous
    • 5 years ago
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    (88+97+91+2x)/5=90 x=87

  4. anonymous
    • 5 years ago
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    just curious, what are these questions for?

  5. anonymous
    • 5 years ago
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    math final i am in a remedial math class

  6. anonymous
    • 5 years ago
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    I see... keep working at it!

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