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OpenStudy (anonymous):
Ravi is comparing the costs of long distance calling cards. To use card A, the cost is $0.50 to connect and then $0.05 per minute. To use card B, it costs $0.20 to connect and then $0.08 per minute. For what number of minutes does it cost the same amount to use each card for a single call?
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OpenStudy (anonymous):
minutes = x. .5 + .05x = .2 + .08x. solve for x.
OpenStudy (anonymous):
thank you (:
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