Ask Question
21 November, 04:17

The mean of Holly's first six math quiz scores was 75%. After taking the seventh quiz, her

mean score rose to 77%. What was Holly's score on the seventh math quiz?

+4
Answers (1)
  1. 21 November, 07:16
    0
    The total of her first six quizzes is 75*6 = 450

    Let her seventh score be x

    The total of her seven quizzes be 450+x

    Then, (450+x) / 7 = 77

    x = (77*7) - 450 = 89

    Her seventh score is 89

    x =
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “The mean of Holly's first six math quiz scores was 75%. After taking the seventh quiz, her mean score rose to 77%. What was Holly's score ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers