The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 45 minutes of calls is $18.25, and the remaining credit after 82 minutes of calls is $12.70 What is the remaining credit after 99 minutes of calls?
The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 45 minutes of calls is $18.25, and the remaining credit after 82 minutes of calls is $12.70 What is the remaining credit after 99 minutes of calls?
Intermediate Algebra
10th Edition
ISBN:9781285195728
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter9: Functions
Section9.CR: Review Problem Set
Problem 24CR: An outpatient operating room charges each patient a fixed amount per surgery plus an amount per...
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The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after
45 minutes of calls is $18.25, and the remaining credit after
82 minutes of calls is $12.70 What is the remaining credit after
99 minutes of calls?
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