EdrianaDavis2635 EdrianaDavis2635
  • 16-11-2018
  • Mathematics
contestada

A long distance phone company charges $4.99 per month plus 10 cents per minute. How much minutes were used in a month if the monthly bill is $16.99

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abbyokarski abbyokarski
  • 16-11-2018

Bill = 4.99 + .10x    where x is the number of minutes spent on the phone

16.99 = 4.99 + .10x          Subtract 4.99 from both sides

14.00 = .10x            Divide both sides by .10

140 = x  

Answer is 140 minutes


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