3x +2y=20 If x=3 what is the value of y
2 answers:
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Answer:
The monthly cost be if you typically talk for 550 minutes per month would be 28.
Step-by-step explanation:
The monthly cost is function of the time t, in minutes, is given by the following equation.
In which is the fixed cost and a is the cost of the minute.
pt&t has a special plan offer this month. there is a 6.00 per month charge each month and calls everywhere in the united states are 0.04 per minute.
This means that . So
what would the monthly cost be if you typically talk for 550 minutes per month
This is C(550).
The monthly cost be if you typically talk for 550 minutes per month would be 28.