<PRE><B>Question 1042061</B>
phone company A charges $35 per month, plus .25 per minute roaming charges.
A(m) = 35 + 0.25m
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phone company B charges $45 per month, plus .05 per minute roaming charges.
B(m) = 45 + 0.05m
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when will these plans cost the same?
please show a written equation answer.
Solve:
35+ 0.25m = 45+ 0.05m
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10 = 0.2m
m = 100/2
# of minutes = 50
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Cost is the same when the calling time is 50 minutes.
Cheers,
Stan H.
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