SOLUTION: The cost for a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an inequality representing the number of mi

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Question 103364: The cost for a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The cost for a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3.
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Cost(x minutes) = 0.36 + 0.21(x-1)
INEQUALITY:
0.36 + 0.21x - 0.21 <= 3
0.15 + 0.21x <= 3
0.21x <= 2.85
x <= 13.57minutes
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Cheers,
Stan H.