Back to Create equations and inequalities — Problem 1 · Task Set 24

Exercises: Create Equations and Inequalities in One Variable

Work through each section in order. For word problems, define your variable before writing any equation or inequality.

Grade 9·21 problems·~35 min·Common Core Math - HS Algebra·standard·hsa-ced-a-1

Work through problems with immediate feedback

Fluency Practice

A cell phone plan charges $30 per month plus $0.10 per text message. Keiko's bill was $47.50 last month. Let $t$ = the number of text messages sent. Which equation correctly models this situation?

$30 + 0.10 = 47.50$

$30 + 0.10t$

$0.10t = 47.50$

$30 + 0.10t = 47.50$