SOLUTION: Matt wants to call his mother long dsitance. The rate is 80 cents for the first three minutes and 20 cents forbaxh additional minute. How long can he talk for $3.00 ?

SOLUTION: Matt wants to call his mother long dsitance. The rate is 80 cents for the first three minutes and 20 cents forbaxh additional minute. How long can he talk for $3.00 ?

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Question 1016526: Matt wants to call his mother long dsitance. The rate is 80 cents for the first three minutes and 20 cents forbaxh additional minute. How long can he talk for $3.00 ?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Call m the number of minutes. We need to solve
.80 + .20(m-3) = 3.00
.20m - .60 = 2.20
.20m = 2.80
m = 14 minutes
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