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When Frank buys three packs of pens, he knows he has 36 pens. When he buys five packs, he knows he has 60 pens. What is the constant of proportionality between the number of packs and the number of pens?
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When Frank buys three packs of pens, he knows he has 36 pens. When he buys five packs, he knows he has 60 pens. What is the constant of proportionality between the number of packs and the number of pens?

User Nick Felker
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3 votes

Answer:

The answer is 12. There are 12 pens in each pack.

Explanation:

User Jenelly
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