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larissacrystalow8g2w
12.09.2019 •
Business
Acellular service provider charged a customer $40 for 150 minutes of airtime. the same provider charged another customer $55 for 300 minutes of airtime. which linear model represents the total cost, c, as a function of t, the amount of airtime in minutes?
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Ответ:
Explanation:
So, we are looking for a linear equation. As we know Equation of a line has different forms, let´s use slope-intercept form:
Where C is the total cost as a function of t, t is the amount of airtime in minutes, m is the slope and b is the y-intercept
Now, let´s use the data provide in order to find m and b:
We have a 2X2 system of equations, let´s solve it using elimination method:
Replacing b in (E1) or (E2):
Knowing the slope m and the y-intercept b the linear model that represents the total cost as a function of t is:
You can check the results evaluating t=150 and t=300, the results must be 40 and 55 respectively
Ответ:
Hey there.
Explanation:
1) The person must be at least 25 years old.
2) He/She has to be the citizen of the united states for the past seven years.
3) He/She has to be ( at the time of election ) an inhabitant of the state they represent.
HOPE THIS ANSWER HAS HELPED YOU.