Answered: The cost of phone plan Q is $10 per…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

ChapterP: Prerequisites

SectionP.6: The Rectangular Coordinate System And Graphs

Problem 37E: An airplane flies from Naples, Italy, in a straight line to Rome, Italy, which is 120 kilometers...

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The cost of phone plan Q is $10 per month plus &0.14 per minute.phone plan R costs $7 per month plus $0.17 per minute.if Anthony talks on the phone for 70 minutes in a month,which plan is less expensive for Anthony,and by how much

Expert Solution

Step 1

Let $x$ denotes the number of minutes.

Then cost of plan $Q$ is

$Q (x) = 10 + 0.14 x$

$\Rightarrow Q (70) = 10 + 0.14 (70) \Rightarrow Q (70) = 19.8$

So, the cost of plan $Q$ per month for 70 minutes is $19.8

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