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6 February, 01:01

The final grade in an algebra course is based on a weighted average - homework counts 10%, quizzes count 15%, tests count 50%, and the final exam counts 25%. A student has a homework average of 67, a quiz average of 62, and a test average of 71. What minimum score does the student need on the final exam to get at least a 70 for the final course grade?

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  1. 6 February, 04:44
    0
    x = 74

    Step-by-step explanation:

    To find the minimum score a student needs to score on the final exam to earn at least a 70 for the final course grade, we will multiply the student's scores with their respective weight-age.

    Supposing the minimum score in the final exam to be x, we can write an equation:

    Homework + quizzes + tests + final exam = 70

    67 (10%) + 62 (15%) + 71 (50%) + x (25%) = 70

    6.7 + 9.3 + 35.5 + 0.25x = 70

    51.5 + 0.25x = 70

    0.25x = 18.5

    x = 74
  2. 6 February, 04:48
    0
    Answer: 74

    Step-by-step explanation:

    Homework + Quiz + Test + Final Exam = 70

    67 (10%) + 62 (15%) + 71 (50%) + x (25%) = 70

    6.7 + 9.3 + 35.5 + 0.25x = 70

    51.5 + 0.25x = 70

    0.25x = 18.5

    x = 74

    The minimum score is 74.
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