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.