<PRE><B>Question 924746</B>
x = sum of scores for 7 quizzes
x/7 = 75
x = 75*7
x = 525
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525/100 = 5.25
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answer:
there are many ways to average 75 over 7 quizzes, these are two ways:
1) get 100 on 5 quizzes, 25 on one quiz, and zero on another quiz.
2) get 75 on all 7 quizzes.
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