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A phone company chargers each customer a monthly fee of $10.75. In addition, it charges $0.03 per minute for in-state calls and $0.11 per minute for out of-states calls. What is the total monthly charge for customer who made 350 minutes of in-state calls and 95 minutes of out-of-state calls?

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MsRay

Answer:

$31.70

Step-by-step explanation:

In order to find the total monthly charge for the customer, you can set up an equation using two different variables and putting in the charges and number of calls for each.  

Let 'x' = the number of in-state calls and 'y' = the number of out-of-state calls.  

Equation:  0.03x + 0.11y + 10.75 = total

Since the customer made 350 minutes of in-state calls, x = 350 and 95 minutes of out-of-state calls, y = 95:

0.03(350) + 0.11(95) + 10.75 = total

$10.50 + $10.45 + $10.75 = $31.70

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