Question 662051: Could someone please help me? I am in need of a lesson on how to tackle algebra 2 word problems, specifically inequality problems. I struggle with setting the problem up. Here's an example of a problem, which I have been struggling with;
The telephone company offers two types of service. With plan A, you can make an unlimited number of local calls per month for $18.50. With plan B, you pay $6.50 monthly, plus 10 cents for each minute of calls after the first 40 min. At least how many min would you have to use the telephone each month to make plan A the better option
Answer by ReadingBoosters(3246)   (Show Source):
You can put this solution on YOUR website! Plan A: 18.50
Plan B: 6.50 + .1(x)
where x is minutes after 40 minutes
18.50 < 6.50 + .1x
18.50 < 6.50 = .1x
12 < .1x
x > 120
The plans are equal when x in plan B is 120, which means the user has used 120 minues above the alloted 40 minutes.
So A < B when x > 120
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