Pre algebra solve using linear equation ax+b=c

Algebra
Tutor: None Selected Time limit: 1 Day

For his long distance phone service, Greg pays a 
 monthly fee plus 
 cents per minute. Last month, Greg's long distance bill was 
. For how many minutes was Greg billed?
Jul 31st, 2015

Thank you for the opportunity to help you with your question!

Let minutes be x

6+0.08x=12.16

    0.0 8x=12.16-6

     0.08x=6.16

            x=6.16/0.08

            x=77 minutes

        

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jul 31st, 2015

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Jul 31st, 2015
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