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A cell phone company offers two pay-as-you-go plans to its customers. plan a charges $30 for the first 200 minutes and thereafter, $0.25 for every minute. plan b charges $25 for the first 200 minutes and thereafter, $0.30 for every minute. for how many minutes after the initial 200 minutes will the costs of the two plans be equal?

Respuesta :

sassqueenel1991
x is the minutes after the initial 200 minutes.
Equation: 30+0.25x=25+0.3x

Solve for x:
30-25=0.3x-0.25x
5=0.05x
x=5/0.05=100

The answer is 100 minutes after the initial 200 minutes.

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