A cell phone company charges a basic rate of $19.99 per month for 300 minutes of local usage. Any local usage over 300 minutes is charged at $.10 per minute. All long distance calls are charged at $.25 per minute. Write and simplify an expression that gives the total monthly bill if x is the number of local minutes and y is the number of long distance minutes. Evaluate the expression if local usage totals 375 minutes and long distance usage totals 54 minutes.

Question

Ciara Ingram

Mathematics

29 October, 17:50

A cell phone company charges a basic rate of $19.99 per month for 300 minutes of local usage. Any local usage over 300 minutes is charged at $.10 per minute. All long distance calls are charged at $.25 per minute. Write and simplify an expression that gives the total monthly bill if x is the number of local minutes and y is the number of long distance minutes. Evaluate the expression if local usage totals 375 minutes and long distance usage totals 54 minutes.

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Dexter Chung · Answer 1

total = 19.99 + 0.10 (x-300) + 0.25y

x = 375

y=54

total = 19.99 + 0.10 (375-300) + 0.25 (54)

total = 19.99 + 0.10 (75) + 0.25 (54)

total = 19.99 + 7.50 + 13.50

total = $40.99