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Topic: Telephone Rates
Replies: 3   Last Post: Nov 11, 1997 9:37 AM

 Messages: [ Previous | Next ]
 Ron Ferguson Posts: 169 Registered: 12/6/04
Telephone Rates
Posted: Nov 8, 1997 2:17 PM

where you dial 1-800-something (Call the company ICM). The ad boldy
indicates a flat rate of \$0.10 / minute anytime. One could easily
compare this to a rate of, say \$0.15 /minute anytime for one of the
other long distance giants (call the company TTA ) except that one
might be overlooking at the bottom of the screen the warning of \$1.59
connect charge for ICM. I can see some nice questions that can be
generated (at different levels for different classes). For example,

1. What does a 1 minute call with ICM cost? A 10 minute call?
2. Write a model (expression, linear function, etc) to represent a
call on ICM lasting x minutes.
3. What does a 1 minute call with TAA cost? A 10 minute call?
4. Write a model (etc.) to represent a call on TAA
5. What is the initial cost of a call on ICM (x = 0)?
6. What is the inital cost of a call on TAA (x=0)?
7. What is the rate per minute on ICM?
8. What is the rate per minute on TAA?
9. If break even occurs when the price for a call of time x is the
same whtehter by ICM or TAA, how long is the break even call? (can
also be done graphically)
10. FOr what length of calls is TAA cheaper?
11. FOr what length of calls is ICM cheaper?
12. If a pizza and a half feeds a kid and a half for an hour and a
half, how long will it take to get delivery? (I hate to have an odd
number of problems :-))

-Ron

Date Subject Author
11/8/97 Ron Ferguson
11/11/97 Joshua Zucker
11/11/97 Ron Ferguson