Answer: Cost per gb of data = y = $5.
Step-by-step explanation:
Let the initial fee be 'x'.
Let the fees depending on the amount of data he use be 'y'.
After using 3 GB of data , he owes $30.
After using 5 GB of data , he owes $40.
According to question, our equations would be
So, Using elimination method , we get that
Hence, Cost per gb of data = y = $5.
Solution:
Let the original number be x .
As per the problem I took a number, wrote a 9 to the right of it,
So we have x9
Again added the doubled original number to the result.
x9+2x
The resulting sum is 633. so we can write
Hence the original number is 52.
The exponential function that represents the number of users on the website after t is given by:
The daily rate of change is of 20.82%.
<h3>What is an exponential function?</h3>An increasing exponential function is modeled by:
In which:
For this problem, the parameters are given as follows:
Hence the equation that represents the number of users on the website after t is given by:
An year has 365 days, hence the rate of change per day is given by:
76/365 = 0.2082 = 20.82%.
The daily rate of change is of 20.82%.
More can be learned about exponential functions at brainly.com/question/25537936
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