7.RP.A.2.c
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.
Example Problems
A car travels 540 miles in 9 hours.
How many miles does the car travel per hour?
How many miles does the car travel per hour?
There are 320 ounces in 20 pounds.
How many ounces per pound are there?
How many ounces per pound are there?
There are 128 ounces in a gallon. There are 4 quarts in a gallon.
How many ounces are in a quart?
How many ounces are in a quart?
Khan Academy Resources
1-on-1 AI tutoring aligned to 7.RP.A.2.c. Instant help for students, real-time insights for teachers.
Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.
Free for teachers, forever →