Need help with an inequality word problem For her phone service, Keisha pays a monthly fee of  , and she pays an additional  per minute of use. The least she has been charged in a month is  . What are the possible numbers of minutes she has used her phone in a month? Use  for the number of minutes, and solve your inequality for  .

Expert Answers

An illustration of the letter 'A' in a speech bubbles

Since your question doesn't have values, I will use symbols. For the monthly base fee, we will use F. For the charge per minute we will use C, and for the number of minutes we will use m. The total bill will be P. So we get:


If the smallest bill was Q, then `Pgt=Q`

Since P = F+mC, then the equation becomes:


the number of minutes used can be solved by isolating m.


Let's try it with some numbers: F = $20. C = $0.05/min, Q = $35


Hope that helps!

Approved by eNotes Editorial Team

Posted on

Soaring plane image

We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

  • 30,000+ book summaries
  • 20% study tools discount
  • Ad-free content
  • PDF downloads
  • 300,000+ answers
  • 5-star customer support
Start your 48-Hour Free Trial