Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $21 monthly fee and charges an additional $0.14 for each minute of calls. The second plan has a $29 monthly fee and charges an additional $0.10 for each minute of calls. For how many minutes of calls
will the costs of the two plans be equal?

200 minutes of calls

Step-by-step explanation:

Let x represent the number of minutes of calls

Set up expressions that represent the costs for each plan:

0.14x + 21 can represent the first plan

0.10x + 29 can represent the second plan

Now, set them equal and solve for x to find when they will be equal:

0.14x + 21 = 0.10x + 29

0.04x + 21 = 29

0.04x = 8

x = 200

So, the costs will be equal with 200 minutes of calls

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