Algebra
posted by Vilma .
ABC phone company charges $16 per month plus 8¢ per minute of phone calls. XYZ phone company charges
$10 per month plus 11¢ per minute of phone calls. How many minutes of phone calls in a month make XYZ
phone company the better deal?

Please check your previous posts before posting a new one.
See:
http://www.jiskha.com/display.cgi?id=1338000442 
Sorry, there was an error in the previous response. You could respond there instead of a new one.
The difference is $6, and each minute costs a difference of 3 cents.
Therefore at $6/0.03=200 minutes, the two are equal. Under 200, XYZ is less expensive. 
the phone company has two plans for cell phones. the first plan calls for a monthly fee of 35.00 with unlimited calling. The other plan is a monthly fee of 15.00, with a 0.50 fee for every minute over 100 used in a month. What is the greatest number of minutes that you can use in the second plan and still pay less than the first plan?
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