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How much will it cost Tom if he used his cell phone for 860 minutes in one month? Tom's basic cell phone plan charges $79.99 for service plus $0.22 per minute beyond the included 800 minutes in the plan.

Sagot :

Determine the time for which Tom used his cell phone beyond the 800 minutes.

[tex]860-800=60[/tex]

Determine the charge for additional 60 minutes with taking 0.22 for one minute.

[tex]60\cdot0.22=13.2[/tex]

The additional charge is $13.2.

The basic cell phone charge is $79.99.

Determine the total cost to Tom for using cell phone for 860 minutes.

[tex]\begin{gathered} C=79.99+13.2 \\ =93.19 \end{gathered}[/tex]

So total cost to Tom for the cell phone is $93.19.

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