SOLUTION: Navigate questions by number Total time remaining: 2:15 Question #27 / 30 Suppose that the monthly cost of a long-distance phone plan (in dollar

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Question 217290: Navigate questions by number

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Question #27 / 30
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 0.12 See the figure below.
The monthly cost for 51 minutes of calls is $18.51 What is the monthly cost for 43 minutes of calls?







Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(18.51/51)(43)=$15.61