Common Core Grade 7 Math 7-rp-2c

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Ratios And Proportional Relationships: Analyze Proportional Relationships And Use Them To Solve Real-World And Mathematical Problems.

Represent proportional relationships by equations. For example, if total cost t is proportional to the number n of items purchased at a constant price p, the relationship between the total cost and the number of items can be expressed as t = pn.