Question

question
tanisha has a cell phone plan that charges $25 per month and includes 500 international
minutes, but then charges $2 per minute for every minute used over the included minutes. how
much would tanisha have to pay in a month if she used 23 minutes over the limit? how much
would tanisha have to pay in a month if she went over by x minutes?
answer attempt 1 out of 2
total cost when over by 23 minutes:
total cost when over by x minutes:

Explanation:

Step1: Calculate the cost for 23 over - minutes

The cost for over - minutes is calculated by multiplying the number of over - minutes by the cost per over - minute. For 23 over - minutes, the cost of over - minutes is \(23\times2\) dollars.

$$23\times2 = 46$$

Then add the base cost of \(\$25\). The total cost \(C_1=25 + 46\)

$$C_1=25+46=71$$

Step2: Calculate the cost for \(x\) over - minutes

The cost for \(x\) over - minutes is \(2x\) dollars (since it's \(\$2\) per minute). Then add the base cost of \(\$25\). The total cost function \(C(x)=25 + 2x\)

Answer:

Total cost when over by 23 minutes: \(71\)
Total cost when over by \(x\) minutes: \(25 + 2x\)