Homework SourseBridget LogueLogue is getting ready to open a small restaura
Bridget
LogueLogue
is getting ready to open a small restaurant. She is on a tight budget and must choose between the following? long-distance phone? plans:
Plan? A:
Plan? B:
Plan? C:
Requirement 1. Match the graphs to the total monthly costs of the three plans for different levels of monthly? long-distance calling.
Before we match the graphs to the? plans, complete the following? table, calculating the total costs for each plan at each of the different minute levels. ?(Round to the nearest? cent.)
Plan
100 minutes
340 minutes
540 minutes
A
B
C
| Plan? A: | Pay 8 cents per minute of? long-distance calling. |
| Plan? B: | Pay a fixed monthly fee of $18 for up to 340 ?long-distance minutes and 6 cents per minute thereafter? (if she uses fewer than 340 minutes in any? month, she still pays $18 for the? month). |
| Plan? C: | Pay a fixed monthly fee of $24 for up to 460 long-distance minutes and 5 cents per minute thereafter? (if she uses fewer than 460 ?minutes, she still pays $24 for the? month). |
Solution
Answer
| plan | 100 minutes | 340 minutes | 540 minutes |
| A | 8 * 100 = 800 cents | 8 * 340 = 2720 cents | 8 * 540 = 4320 cents |
| B | 1800 cents | 1800 cents | 1800 + ( 540 - 340 ) * 6 = 3000 cents |
| C | 2400 cents | 2400 cents | 2400 + ( 540 - 460 ) * 5 = 2800 cents |
