To find: The maximum and minimum bill of Dale cell phone.
Answer to Problem 25PPS
The minimum bill is
And maximum bill is
Explanation of Solution
Given: Dale has maximum
Daytime minutes cost $
Dale use at least
Let the variable for the daytime and nighttime is:
Now the system of inequalities for the given situation:
Find maximum and minimum bill from the graph
From the graph ordered pair is
Ordered pair for
Now ordered pair for
Hence the minimum bill is
Chapter 3 Solutions
Algebra 2
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