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Problema Solution

At TelePower Plus, long-distance phone calls to China cost $0.59 for the first minute and $0.25 for each additional minute, plus an additional roaming charge of $2.50. If the total charge of a call to Beijing was $11.84, how many minutes did the call last?

Answer provided by our tutors

At TelePower Plus, long-distance phone calls to China cost $0.59 for the first minute and $0.25 for each additional minute, plus an additional roaming charge of $2.50. If the total charge of a call to Beijing was $11.84, how many minutes did the call last?

Let "x" be the number of minutes.

11.84=0.59+0.25x+2.5.

11.84-0.59-2.5=2.5x.

2.5x=8.75.

x=8.75/2.5

=3.5 minutes.


 

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