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Suppose a teacher finds that the

scores of your students got on a quiz

inversely with the number of

absences they had.

If a student with 2 absences has a

score of 12, what would be the score

for a student who had three absences?

Reverse variation

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Answers (1)
  1. 4 March, 20:58
    0
    Scores = 8

    Step-by-step explanation:

    To solve variation problems, you make mild assumptions and analogies

    Let's score be represented with S

    Let's Absences be represented with A.

    Therefore

    S varies inversely as A

    S ~ 1/A

    S = K/A

    The K represents a contant notation so that we can easily figure the variation problem.

    When Absences were 2

    Scores were 12

    S = K/A

    12 = K / 2

    Cross Multiply.

    K = 24.

    It means that, S = 24 / A.

    For a student with 3 absences, the score would be:

    S = 24 / A

    S = 24 / 3

    S = 8

    Math is fun!
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