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posted by  vhlowe on 11/3/2009 4:20:03 PM  |  status: Live  |  Earned Karma: 0

word problems

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Algebra N/A N/A N/A 11/3/2009 at 3:00:00 PM
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if you are choosing between two phone services company A chsrgesd $12 a month plus $0.10 a minute. company B does not charge for the month but charges $0.25 per minute at how many minutes will the monthly cost be the same

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posted by tyl2ant on 11/3/2009 4:25:48 PM  |  status: Live
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You want them bot to be equal so...
let x be the number of minutes
12 + 0.1(x) = 0.25(x)
12 = 0.15x
x = 80 minutes
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