A phone company charges a monthly rate of $12.95 and $0.25 a minute per call. If the bill for this month totaled $21.20, how many minutes were charged on this bill?
Let the variable represent what is to be found.
x = number of minutes 0.25x + 12.95 = 21.20 {price per minute times number of minutes plus monthly rate equals total bill} 0.25x = 8.25 {subtracted 12.95 from each side} x = 33 {divided each side by 0.25} 33 minutes were charged Ask the House
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