Sunny Horizon Cellular’s phone plan has a monthly fee of $10.00 and charges $0.10 for every minute used. Stephan’s bill for the month was $23.80. If the equation that models this situation is (0.10)m + 10.00 = 23.80, use inverse operations and properties of equality to find the number of minutes Stephan talked during the month. Stephan talked for minutes.
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Answer:
stephen tallked 138 minutes
23.80 was the bill, cut 10$ monthly fee.
now it remains 13.8$ ,divide it by 0.10$ = 138 minutes.
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Answer: 138
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