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Proportional Relationship using Equations

Representing proportional relationships by equations. Identifying the equivalent expression for a proportional relationship and applying the same to word problems.

Mapped to CCSS Section# 7.RP.A.2c

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.
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