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Missy bought 5 cookies for $3. If she can also buy 10 cookies for $6, or 15 cookies for $9, does this show a proportional relationship? If so, write an equation to represent this relationship.
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Missy bought 5 cookies for $3. If she can also buy 10 cookies for $6, or 15 cookies for $9, does this show a proportional relationship? If so, write an equation to represent this relationship.

User Kgalic
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This shows a proportional relationship because as the number of cookies goes up by five the price of the cookies rises of three for five cookies and this rate stays consistent making it a proportional relationship.
User Jan Krakora
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