If a phone company charges $0.45 for the first minute and $0.35 for each additional...

stylaria3y

stylaria3y

Answered

2022-07-26

If a phone company charges $0.45 for the first minute and $0.35 for each additional minute for a long-distance call, how long did you talk if the phone call cost $11.30?

Answer & Explanation

Sheldon Castillo

Sheldon Castillo

Expert

2022-07-27Added 10 answers

Charges for the first minute $0.45
Charges for the each additional minute: $0.35
C ( t ) = 0.45 + 0.35 t
For charges $11.30
11.30 = 0.45 + 0.35 t 0.35 t = 10.85 t = 10.85 0.35 t = 31

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