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4 books for 1$12.00 3 books for $9.00 What is the price per book? What is the constant of proportionality

User Jobbo
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Answer:

the price per book is $3 the constant of proportionality is 3

Explanation:

12 divided by 4 is 3 and 9 divided by 3 is 3 so it means that the price for 1 book is going to be 3 and for every book you buy the original value will be 3.

User KevinShaffer
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