To determine the costs associated with Jane’s prepaid cell phone plan, we need to analyze the information provided for June and July.
In June, Jane used 310 minutes and her total cost was $69.00. To find the cost per minute, we can set up the equation:
Cost = Monthly Fee + (Cost per Minute * Minutes Used)
Let’s define:
- F = Monthly Fee
- C = Cost per Minute
So for June, we can express it as:
69 = F + (C * 310)
In July, she used 740 minutes, but we don’t know the total cost yet. We can express July’s cost in terms of F and C:
July Cost = F + (C * 740)
To solve for F and C, we need another equation. However, we only have one equation from June. Based on the information provided, we can see that she is charged for each minute in addition to her monthly fee.
Since Jane does not remember the exact costs, we can’t determine the precise values of F and C without more information. Nonetheless, we can infer that her monthly plan includes a base fee plus additional charges based on usage in minutes. Thus, knowing how much she spends in subsequent months will help us to find F and C more definitively.