It costs a flat fee of $3.15 to make an international call plus $0.05 for every minute that you talk. if you were charged $5.10 for making an international call, for how many minutes did you talk?

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asked Apr 23, 2018 51.3k views

5 votes

It costs a flat fee of $3.15 to make an international call plus $0.05 for every minute that you talk. if you were charged $5.10 for making an international call, for how many minutes did you talk?

Mathematics
high-school

Karthik Arumugham asked

by Karthik Arumugham

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1 Answer

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The equation would be 0.05x + 3.15 = 5.10
0.05x = 1.95 (subtraction)
x = 39 (division)
39 minutes

Sefiks answered Apr 28, 2018

by Sefiks

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