(a) If Maria makes 100 minutes of long distance calls for the month, which plan costs less? OPlan A OPlan B How much less does it cost than the other plan? (b) For what number of long distance minutes do the two plans cost the same? If the time spent on long distance calls is less than this amount, which plan costs less? OPlan A OPlan B

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.7: Solving Inequalities
Problem 82E
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Marla can choose plan A or B for her long distance charges. For each plan, cost (in dollars) depends on minutes used (per month) as shown in the graph.
Plan A
26
24
22
Plan B
20-
Cost
18
(In dollars)
16
14-
12
10
6-
25 50 75 100 125 150 175 200 225 250 27S 300 325 350 375
Minutes used (per month)
a) If Maria makes 100 minutoc f long
Transcribed Image Text:Plan A 26 24 22 Plan B 20- Cost 18 (In dollars) 16 14- 12 10 6- 25 50 75 100 125 150 175 200 225 250 27S 300 325 350 375 Minutes used (per month) a) If Maria makes 100 minutoc f long
25 50 75 100 125 150 175 200 225 250 275 300 325 350 375
Minutes used (per month)
(a) If Maria makes 100 minutes of long distance calls for the month, which plan costs less?
O Plan A
OPlan B
How much less does it cost than the other plan?
(b) For what number of long distance minutes do the two plans cost the same?
If the time spent on long distance calls is less than this amount, which plan costs less?
OPlan A
OPlan B
Transcribed Image Text:25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 Minutes used (per month) (a) If Maria makes 100 minutes of long distance calls for the month, which plan costs less? O Plan A OPlan B How much less does it cost than the other plan? (b) For what number of long distance minutes do the two plans cost the same? If the time spent on long distance calls is less than this amount, which plan costs less? OPlan A OPlan B
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