math

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How do I write this problem?

to receive a grade B- in a math course, you must have a mean of 83 on five tests (4 tests + one final) all 100 pts maximum each. Your scores thus far are 85,79,82,and 81. How many points must you have on the final, to earn the B-? write down your work..

  • math -

    0.83 * 500 = 415

    You need a total of 415 points.

    Your test grades so far = 327

    415 = 327 = 88

    You need at least a score of 88 on the final.

  • math -

    thank you ms. Sue.. the four scores threw me off and wasn't sure how to start the formula or problem

  • math -

    You're welcome.

    I just noticed that I have a typo:

    415 - 327 = 88

  • math -

    thank you you are a life saver

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