Answer
$C(t)= 30t+90$,
$7$ months
Work Step by Step
Let $t$ = months of membeship.
Then $C(t)= 30t+90$
and the t for which $C(t)=300$ is found from
$300= 30t+90\qquad$ ... subtract 90
$ 210=30t\qquad$ ... divide with 30
$t=7$ months
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 7 - Functions and Graphs - Review Exercises: Chapter 7 - Page 496: 24
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
