SOLUTION: Wireless phone company A charges $20 per month plus $0.12 per minute. Wireless phone company B charges $50 per month plus $0.06 per minute. For how many minutes of calls will the m

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Question 188979: Wireless phone company A charges $20 per month plus $0.12 per minute. Wireless phone company B charges $50 per month plus $0.06 per minute. For how many minutes of calls will the monthly bills be the same?
A)80 minutes
B)100 minutes
C)160 minutes
D)250 minutes
E)500 minutes
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
let x be the number of minutes
:
20+.12x=50+.06x
:
.06x=30
:
x=500 minutes
:
answer is E