# Math

Customers of a phone company can choose between two service plans for long distance calls. The first plan has a
\$14 monthly fee and charges an additional
\$0.20 for each minute of calls. The second plan has an \$18 monthly fee and charges an additional \$0.15 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

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3. 23
1. let m be the number of minutes

cost1 = .20m + 14
cost2 = .15m + 18

When is .20m + 14 = .15m + 18 ?

.05m = 4
m = 4/.05 = 80

1. 0
2. 0
posted by Reiny
2. 250

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posted by Anonymous

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