Answer:
Option A:
Number of minutes internet is being used is 200 minutes
Step-by-step explanation:
Solution:
Given that,
The function below can be used to calculate the cost of surfing the internet, f(m) is given as:
f(m) = 10 + 0.15m
Where f(m) is the total cost of surfing the internet.
10 denotes the initial charge
M is the number of minutes internet is being used
To find: If Jon paid $ 40 we have to find number of minutes internet is being used
Substitute f(m) = 40 in given function
40 = 10 + 0.15m
0.15m = 40 - 10
0.15m = 30
m = 200
Thus number of minutes internet is being used is 200 minutes
