Question

Beth read a total of 12 books over 7 months.

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​If Beth has read 84 books so far, how many months has she been with her book club?
​Solve using unit rates.
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Answer 1

84 books over 49 months

Answer 2

She has been with her book club for 49 months.

Explanation:

If Beth reads a total of 12 books per 7 months, then that is our unit rate. If she has read 84 books so far, then we divide 84 books by 12 books/7 months, which is the same as multiplying by 7 months/12 books. When we do that, the books cancels out with the books, and we get 49 months/1, which is 49 months.