Answer
a.) T=10m+10
b.) 40 dollars
c.) 29 minutes
Work Step by Step
a.)
T= total cost of the call
m=minutes on the phone
T=10m+10
b.)
T=10(3)+10
T=30+10
T=40 dollars
c.)
300=10m+10
10m=290
m=29 minutes
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Chapter 1 - Linear Functions - Chapter Review Exercises - Page 120: 6
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