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Question

You wonder if you can save money by using your cell phone for all long distance calls. Long distance calls cost $.05 per minute on phone. The basicplan for your cell phone is $29.99 each month. The cost of regular phone service with unlimited long distance is $39.99. Define a variable and write an inequality that will help you find the number of long distance call minutes you may make and still save money

Answer 1

You will save money using your cell phone if the following is true

 

29.99 + .05m < 39.99   this inequlaity says that the base mthly price for cell plus the .05 per minute is less than the regular phone plan

 

you can solve this inequality for m to find the number minutes of calls you can make and still save money

 

hope this helps