Suppose that the monthly cost of a long-distance phone plan (in dollars) is a linear function of the total calling time (in minutes). When graphed, the function gives a line with a slope of 0.11. The monthly cost for 54 minutes of calls is $15.68. What is the monthly cost for 47 minutes of calls?
Suppose that the monthly cost of a long-distance phone plan (in dollars) is a linear function of the total calling time (in minutes). When graphed, the function gives a line with a slope of 0.11. The monthly cost for 54 minutes of calls is $15.68. What is the monthly cost for 47 minutes of calls?
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter8: Functions
Section8.CT: Test
Problem 19CT
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Suppose that the monthly cost of a long-distance phone plan (in dollars) is a linear
The monthly cost for 54 minutes of calls is $15.68. What is the monthly cost for 47 minutes of calls?
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