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
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
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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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 denotes the number of minutes.
Then cost of plan is
So, the cost of plan per month for 70 minutes is $19.8
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