The cost of a monthly cell phone plan, in dollars, is modeled by the function c(x)=0.6x+30, where x is the number of text messages
sent in a month. In this case, the cost of the phone plan includes a fixed monthly fee of $30 and an additional charge of $0.6 for each text message sent in that month.
To calculate the cost of a monthly cell phone plan, we need to use the function c(x)=0.6x+30, where x represents the number of text messages.
Here are the steps to calculate the cost of the monthly cell phone plan:
Step 1: Determine the number of text messages (x) you have sent in a month.
Step 2: Substitute the value of x in the function c(x)=0.6x+30.
Step 3: Simplify the equation by performing the multiplication and addition operations.
For example, let's say you sent 100 text messages in a month. To find the cost of the monthly cell phone plan for this scenario, follow these steps:
Step 1: x = 100
Step 2: Substitute x = 100 into the function c(x)=0.6x+30:
c(100) = 0.6(100) + 30
Step 3: Simplify the equation:
c(100) = 60 + 30
c(100) = 90
Based on the given model, if you send 100 text messages in a month, the cost of the monthly cell phone plan would be $90.
To find the cost of a monthly cell phone plan, we need to substitute the given values into the function c(x)=0.6x+30.
The function c(x)=0.6x+30 represents a linear equation where the cost of the cell phone plan is determined by the number of text messages sent in a month.
In this equation, the coefficient of x (0.6) represents the cost of each text message, and the constant term (30) represents additional charges or fees unrelated to the number of text messages.
To calculate the cost of the monthly cell phone plan, we need to know the number of text messages (x). Substituting this value into the equation will give us the answer.
For example, if the number of text messages is 100, we can substitute x=100 into the equation:
c(100)=0.6(100)+30
c(100)=60+30
c(100)=90
Therefore, the cost of the monthly cell phone plan when sending 100 text messages would be $90.
Similarly, you can substitute any value of x into the equation c(x)=0.6x+30 to find the cost of the monthly cell phone plan for that particular number of text messages.